{"title":"Nomex Socks","description":"\u003cp\u003e\u003ciframe style=\"display: block; margin-left: auto; margin-right: auto;\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/aGw2nJ7Mqoc\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","products":[{"product_id":"sabelt-ui-600-nomex-socks","title":"Sabelt UI-600 Nomex Socks","description":"\u003ch1\u003eSabelt UI-600 Nomex Socks\u003c\/h1\u003e\n\u003ch3\u003eFIA 8856-2018 Certified\u003c\/h3\u003e\n\u003cp\u003e\u003cimg alt=\"FIA Approved\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/FIA_Approved_Logo.png?v=1712790583\" width=\"226\" height=\"43\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe new UI-600 tech layers from Sabelt offer stretch-fit nearly seamless construction for the ultimate in breathability and comfort while racing.\u003c\/p\u003e\n\u003cp\u003eThe composition of this new underwear line makes the clothing light, resistant and extremely comfortable.\u003c\/p\u003e\n\u003cp\u003eThe use of Lenzing FR fiber, which is made of a natural raw material, and keeps the body dry and cool, together with the modacrylic and elastane, which make the garments totally stretch, make this line the most convenient and the most Innovative across the range.\u003c\/p\u003e\n\u003cp\u003eThe two way stretch warp knit seamless fabric has a high wear resistance and is very light.\u003c\/p\u003e\n\u003cp\u003eSabelt UI-600 Nomex socks are sized in European shoe sizes. Consult the size chart below if you need to convert your US shoe size to EU.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco-Shoe_Size_Chart_Image.png?v=1749844904\" alt=\"Sparco-Shoe_Size_Chart_Image\"\u003e\u003c\/p\u003e","brand":"Sabelt S.p.A.","offers":[{"title":"Black \/ 38\/39","offer_id":43205346787547,"sku":"Z150UI600SOCKSN3839","price":65.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 40\/41","offer_id":43205346820315,"sku":"Z150UI600SOCKSN4041","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ 42\/43","offer_id":43205346853083,"sku":"Z150UI600SOCKSN4243","price":65.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 44\/45","offer_id":43205346885851,"sku":"Z150UI600SOCKSN4445","price":65.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 46\/47\/48","offer_id":43205346918619,"sku":"Z150UI600SOCKSN46","price":65.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 38\/39","offer_id":43205346984155,"sku":"Z150UI600SOCKSB3839","price":65.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 40\/41","offer_id":43205347016923,"sku":"Z150UI600SOCKSB4041","price":65.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 42\/43","offer_id":43205347049691,"sku":"Z150UI600SOCKSB4243","price":65.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 44\/45","offer_id":43205347082459,"sku":"Z150UI600SOCKSB4445","price":65.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 46\/47\/48","offer_id":43205347115227,"sku":"Z150UI600SOCKSB46","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sabelt_ui600_nomex-socks-white.jpg?v=1750109058"},{"product_id":"omp-one-nomex-socks","title":"OMP ONE Nomex Socks","description":"\u003ch1\u003eOMP ONE Nomex Socks\u003c\/h1\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/OMP_One_Socks_SKU_IE0-0766-A01_Marketing_Image.png?v=1727128367\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003eThese socks make use of the same material of the One Underwear, coupled with advanced knitting techniques to provide differentiated pressure areas, with beneficial effect on blood circulation, reducing the feeling of fatigue on the legs whilst driving.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHomologation: FIA 8856-2018\u003c\/strong\u003e\u003c\/p\u003e","brand":"OMP Racing","offers":[{"title":"Black \/ Small","offer_id":43205837455579,"sku":"IE0-0766-A01-071-S","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Medium","offer_id":43205837488347,"sku":"IE0-0766-A01-071-M","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large","offer_id":43205837521115,"sku":"IE0-0766-A01-071-L","price":79.0,"currency_code":"USD","in_stock":true},{"title":"White \/ Small","offer_id":43205837553883,"sku":"IE0-0766-A01-020-S","price":79.0,"currency_code":"USD","in_stock":true},{"title":"White \/ Medium","offer_id":43205837586651,"sku":"IE0-0766-A01-020-M","price":79.0,"currency_code":"USD","in_stock":true},{"title":"White \/ Large","offer_id":43205837619419,"sku":"IE0-0766-A01-020-L","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-one-nomex-socks-812967.jpg?v=1744300114"},{"product_id":"omp-nomex-socks","title":"OMP First Nomex Socks","description":"\u003ch1\u003eOMP Nomex First Racing Socks\u003c\/h1\u003e\n\u003ch3\u003eFIA 8856-2018 Homologated\u003c\/h3\u003e\n\u003cp\u003eOMP FIA 8856-2018 approved mid-length (mid-calf) First Nomex socks are thin and moisture wicking to retain great pedal feel while keeping your feet safe, dry and comfortable. Soft-knitted fire retardant fabric.\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/OMP-first-socks-IE0-0762-A01-INFO.jpg?v=1750112296\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-nomex-socks-size-guide.jpg?v=1750112392\" alt=\"\"\u003e\u003c\/p\u003e","brand":"OMP Racing","offers":[{"title":"Black \/ XS","offer_id":43205851578587,"sku":"IE0-0762-A01-071-XS","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ Small","offer_id":43205851611355,"sku":"IE0-0762-A01-071-S","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ Medium","offer_id":43205851644123,"sku":"IE0-0762-A01-071-M","price":65.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large","offer_id":43205851676891,"sku":"IE0-0762-A01-071-L","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-first-nomex-sock-black.jpg?v=1750112065"},{"product_id":"sparco-x-cool-recharge-kit","title":"Sparco X-Cool Recharge Kit","description":"\u003ch1\u003eSparco X-Cool Recharge Kit\u003c\/h1\u003e\n\u003cp\u003eThe easy-to-apply Sparco X-Cool Recharge Kit helps revive your Sparco fire suit or nomex underwear to it's original high-temperature performance. Simply add to your washing machine along with your performance apparel.\u003c\/p\u003e\n\u003cp\u003eEach kit can treat one Sparco fire suit or one complete set of Sparco Nomex underlayers (balaclava, shirt, pants, and socks).\u003c\/p\u003e\n\u003ch2\u003eSparco X-Cool Recharge Kit Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Sparco\u003c\/li\u003e\n\u003cli\u003eManufacturer part no.: 001157RECHARGE\u003c\/li\u003e\n\u003cli\u003eTreats: one Sparco driver fire suit OR one set of Sparco Nomex underlayers\u003c\/li\u003e\n\u003cli\u003eSize: 60ml (2.0 fl oz)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Default Title","offer_id":43206010699995,"sku":"001157RECHARGE","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco_x-cool-recharge-kit.jpg?v=1757000275"},{"product_id":"alpinestars-race-v4-nomex-socks","title":"Alpinestars Race v4 Nomex Socks","description":"\u003ch1\u003eAlpinestars Race v4 Nomex Socks\u003c\/h1\u003e\n\u003cp\u003eAlpinestars Race v4 Nomex racing underlayer socks are lightweight, comfortable, durable, and ergonomically designed to meet the demands of the world’s top drivers. Certified to FIA homologation standards, these socks offer excellent protection from fire and heat transfer, featuring flat seams for long-lasting comfort.\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"43\" width=\"226\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/FIA_Approved_Logo.png?v=1712790583\" alt=\"FIA Approved\"\u003e\u003c\/p\u003e\n\u003cp\u003eCertified to the new FIA 8856-2018 homologation standard.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch2\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/h2\u003e\n\u003ch2\u003eAlpinestars Race v4 Nomex Sock Size Chart\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-Underlayer-Sock-Size-Chart-CMS.png?v=1729715167\" alt=\"Alpinestars-Underlayer-Sock-Size-Chart\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e","brand":"Alpinestars","offers":[{"title":"Black \/ Small","offer_id":43206162677979,"sku":"4704021-10-S","price":59.95,"currency_code":"USD","in_stock":true},{"title":"Black \/ Medium","offer_id":43206162710747,"sku":"4704021-10-M","price":59.95,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large","offer_id":43206162743515,"sku":"4704021-10-L","price":59.95,"currency_code":"USD","in_stock":true},{"title":"Black \/ Extra Large","offer_id":43206162776283,"sku":"4704021-10-XL","price":59.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Small","offer_id":43206162809051,"sku":"4704021-20-S","price":59.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Medium","offer_id":43206162841819,"sku":"4704021-20-M","price":59.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Large","offer_id":43206162874587,"sku":"4704021-20-L","price":59.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Extra Large","offer_id":43206162907355,"sku":"4704021-20-XL","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-race-v4-nomex-socks-black_image.jpg?v=1763314690"},{"product_id":"sparco-rw-4-nomex-socks","title":"Sparco RW-4 Nomex Socks","description":"\u003ch1\u003eSparco RW-4 Nomex Socks\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/SPARCO_RW-4_NOMEX_SOCKS_INFO.jpg?v=1750107372\" alt=\"\" width=\"544\" height=\"638\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sparco RW-4 line of undergarments are designed to provide both comfort and protection. These RW-4 mid-calf socks feature the soft-touch interlock fabric that characterizes the whole Sparco RW-4 line. This ensures the socks are lightweight, breathable, and super comfortable, while the Nomex construction makes them fire-retardant and anti-static.\u003c\/p\u003e\n\u003cp\u003eThe Sparco RW-4 line of racing underlayers offers long-lasting protection when it matters most.\u003c\/p\u003e\n\u003ch2\u003eSparco RW-4 Nomex Socks Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Sparco\u003c\/li\u003e\n\u003cli\u003eManufacturer part no.: 001516BI\u003c\/li\u003e\n\u003cli\u003eSoft and comfortable\u003c\/li\u003e\n\u003cli\u003eRegular fit\u003c\/li\u003e\n\u003cli\u003eSized in European shoe sizes (see chart below to convert to US shoe sizes)\u003c\/li\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Sparco-Shoe_Size_Chart_Image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco-Shoe_Size_Chart_Image.png?v=1749844904\"\u003e\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"38\/39","offer_id":43206315999451,"sku":"001516BI1012","price":59.0,"currency_code":"USD","in_stock":true},{"title":"40\/41","offer_id":43206316032219,"sku":"001516BI11","price":59.0,"currency_code":"USD","in_stock":true},{"title":"42\/43","offer_id":43206316064987,"sku":"001516BI1112","price":59.0,"currency_code":"USD","in_stock":true},{"title":"44\/45","offer_id":43206316097755,"sku":"001516BI12","price":59.0,"currency_code":"USD","in_stock":true},{"title":"46","offer_id":43206316130523,"sku":"001516BI1212","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-RW-4-nomex-sock.jpg?v=1750107352"},{"product_id":"sparco-rw-7-nomex-socks","title":"Sparco RW-7 Nomex Socks","description":"\u003ch1\u003eSparco RW-7 Nomex Socks\u003c\/h1\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/SPARCO_RW-7_UNDERLAYER_SOCKS-INFO.jpg?v=1750113364\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe Sparco RW-7 line of Nomex undergarments is designed to provide both exceptional comfort and excellent protection. The RW-7 is made from a unique mixture of very comfortable and soft fibers. Sparco RW-7 socks are treated with Sparco’s X-Cool treatment, which draws heat from the surface of the driver's body to cool the skin. In addition to this cooling, Sparco X-Cool has an antibacterial effect. You'll stay cooler and more comfortable even in the most strenuous racing environments. X-Cool treatment ensures optimal hygiene for every race.\u003c\/p\u003e\n\u003ch2\u003eSparco RW-7 Nomex Sock Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Sparco\u003c\/li\u003e\n\u003cli\u003eManufacturer part no.: 001522\u003c\/li\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSeamless, stretchable Nomex in key areas for mobility\u003c\/li\u003e\n\u003cli\u003eDesigned for comfort while in the driving position\u003c\/li\u003e\n\u003cli\u003eMinimal external seams for increased driver comfort\u003c\/li\u003e\n\u003cli\u003eAvailable in Black or White\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSparco racing socks are sized according to European shoe sizes. Use the chart below to find your size.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-socks-sizing-guide.jpg?v=1750113939\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Black \/ 38\/39","offer_id":43206317670619,"sku":"001522NR1012","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 40\/41","offer_id":43206317703387,"sku":"001522NR11","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 42\/43","offer_id":43206317736155,"sku":"001522NR1112","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 44\/45","offer_id":43206317768923,"sku":"001522NR12","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 46","offer_id":43206317801691,"sku":"001522NR1212","price":69.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 38\/39","offer_id":43206317834459,"sku":"001522BI1012","price":69.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 40\/41","offer_id":43206317867227,"sku":"001522BI11","price":69.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 42\/43","offer_id":43206317932763,"sku":"001522BI1112","price":69.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 44\/45","offer_id":43206317965531,"sku":"001522BI12","price":69.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 46","offer_id":43206317998299,"sku":"001522BI1212","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-RW-7-nomex-sock-white.jpg?v=1750113653"},{"product_id":"sparco-rw-10-compression-nomex-socks","title":"Sparco RW-10 Compression Nomex Socks","description":"\u003ch1\u003eSparco RW-10 Compression Nomex Socks\u003c\/h1\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_RW-10_Underlayer_sock_ImagE.png?v=1728419168\"\u003eThe Sparco RW-10 line of Nomex® undergarments is the lightest and most breathable on the market that is homologated to the new FIA 8856-2018 standard. When designing this new line of undergarments, Sparco studied the drivers seating position to ensure ultimate fit and comfort. The RW-10 features a fully seamless structure with ultra-soft stretchable material for a very comfortable fit. RW-10 shirts and underpants are treated with Sparco’s X-Cool treatment, which draws heat from the body surface to cool the driver. In addition to cooling the driver, X-Cool treatment has an anti-bacterial effect.\u003c\/p\u003e\n\u003ch2\u003eConstruction\u003c\/h2\u003e\n\u003cp\u003eThe RW-10 Compression sock is the only FIA approved compression sock on the market. It features a unique helical structure that provides a gradual Class 1 compression force. This graduate compression force uses the same principles used in action sports. The RW-10 sock exerts maximum pressure at the ankle and then decreases going upwards towards the calf, to facilitate the upward return of blood circulation. This compression force is proven to minimize muscle fatigue to improve driver comfort and focus. Available in black or white.\u003c\/p\u003e\n\u003ch3\u003eWhy Wear a Compression Sock?\u003c\/h3\u003e\n\u003cp\u003eTo improve driver focus and comfort. Proven effective in sports use. Benefits include reduced muscle fatigue, increased in oxygen delivery, decreased lactic acid and prevents cramping.\u003c\/p\u003e\n\u003ch2\u003eTechnology\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNewest FIA rating - FIA 8856-2018\u003c\/li\u003e\n\u003cli\u003eSeamless stretchable Nomex in key areas for mobility\u003c\/li\u003e\n\u003cli\u003eDesigned for comfort in a driving position\u003c\/li\u003e\n\u003cli\u003eMinimal external seams increase driver comfort\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Black \/ 38\/39","offer_id":43206319407323,"sku":"001523NR1012","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 40\/41","offer_id":43206319440091,"sku":"001523NR11","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 42\/43","offer_id":43206319472859,"sku":"001523NR1112","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 44\/45","offer_id":43206319505627,"sku":"001523NR12","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 46","offer_id":43206319538395,"sku":"001523NR1212","price":89.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 38\/39","offer_id":43206319571163,"sku":"001523BI1012","price":89.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 40\/41","offer_id":43206319603931,"sku":"001523BI11","price":89.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 42\/43","offer_id":43206319636699,"sku":"001523BI1112","price":89.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 44\/45","offer_id":43206319669467,"sku":"001523BI12","price":89.0,"currency_code":"USD","in_stock":true},{"title":"White \/ 46","offer_id":43206319702235,"sku":"001523BI1212","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/products\/0003086_compression-sock-rw-10.jpg?v=1744299542"},{"product_id":"alpinestars-zx-v4-nomex-socks","title":"Alpinestars ZX v4 Nomex Socks","description":"\u003ch1\u003eAlpinestars ZX v4 Nomex Socks\u003c\/h1\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-ZX-v4-nomex-socks-INFO.jpg?v=1750110954\"\u003e\u003c\/div\u003e\n\u003cp\u003eThese Nomex socks from Alpinestars' advanced ZX base layer series were developed with a compression design for enhanced performance. Gradual compression, sport design wraps around the muscles, tendons and ligaments in the foot, ankle and calf. This aids overall circulation and blood flow to the legs, as well as assists in combatting fatigue.\u003c\/p\u003e\n\u003cp\u003eLightweight and comfortable, the Alpinestars ZX v4 socks incorporate elastane fiber for comfort and freedom of movement. This latest version was designed to reduce pressure points, making them more comfortable for long stints in the race car. Soft to the touch, their seamless construction reduces pressure points. The FIA 8856-2018 homologated socks fit to just below the knees for maximum protection.\u003c\/p\u003e\n\u003ch2\u003eAlpinestars ZX v4 Nomex Socks Protection\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"Both FIA and SFI Approved\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/FIA_Approved_Logo.png?v=1712790583\" width=\"226\" height=\"43\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/SFI-Logo.png?v=1712792745\" alt=\"SFI Approved\" width=\"102\" height=\"43\"\u003e\u003c\/p\u003e\n\u003cp\u003eCertified to FIA 8856-2018 and the latest SFI homologation standard.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Alpinestars-Underlayer-Sock-Size-Chart\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-Underlayer-Sock-Size-Chart-CMS.png?v=1729715167\"\u003e\u003c\/p\u003e","brand":"Alpinestars","offers":[{"title":"Black \/ Small","offer_id":43547876393179,"sku":"4704323-10-S","price":76.95,"currency_code":"USD","in_stock":true},{"title":"Black \/ Medium","offer_id":43547876425947,"sku":"4704323-10-M","price":76.95,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large","offer_id":43547876458715,"sku":"4704323-10-L","price":76.95,"currency_code":"USD","in_stock":true},{"title":"Black \/ Extra Large","offer_id":43547876491483,"sku":"4704323-10-XL","price":76.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Small","offer_id":43547876524251,"sku":"4704323-20-S","price":76.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Medium","offer_id":43547876589787,"sku":"4704323-20-M","price":76.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Large","offer_id":43547876622555,"sku":"4704323-20-L","price":76.95,"currency_code":"USD","in_stock":true},{"title":"White \/ Extra Large","offer_id":43547876655323,"sku":"4704323-20-XL","price":76.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-zx-v4-nomex-socks-white.jpg?v=1750110931"},{"product_id":"chilout-pro-sport-nomex-balaclava-copy","title":"Chillout Pro Sport Socks","description":"\u003ch1\u003eChillout Pro Sport Fire Resistant Socks\u003c\/h1\u003e\n\u003cp\u003eThe Chillout Pro Sport underlayers are turning the racing world on its head with the latest technology which will give you a performance advantage on the track.  The Pro Sport flame and heat resistance underlayers are thermal regulating which can reduce your skin temperature by up to 8º F which will quicken your reflexes and reaction time on the track. The ultra-lightweight materials prioritize airflow to help you regulate your body temperature during the heat of battle on the track.\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"43\" width=\"226\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/FIA_Approved_Logo.png?v=1712790583\" alt=\"Both FIA and SFI Approved\"\u003e\u003cimg height=\"43\" width=\"102\" alt=\"SFI Approved\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/SFI-Logo.png?v=1712792745\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Chillout Pro Sport underwear is the only FIA \u0026amp; SFI approved thermal regulating underlayers available on the planet to be sure you meet the most stringent homologation standards for your race sanctioning body.  The Chillout Pro Sport underlayers sport antibacterial technology woven into every thread to neutralize 99% of bacteria to keep you fresh and focused on the track regardless of the length of your driving stint.  If you are serious about winning, then you need the Chillout Pro Sport underlayers in your gear bag. \u003c\/p\u003e\n\u003ch2\u003eChillout Pro Sport Socks Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFIA Homologation Standard: 8856-2018\u003c\/li\u003e\n\u003cli\u003eSFI Homologation Specification: 3.3\u003c\/li\u003e\n\u003cli\u003eSizes: S \/ M \/ L\u003c\/li\u003e\n\u003cli\u003eColors: BLACK, WHITE\u003c\/li\u003e\n\u003cli\u003eComposition:28% Aramide, 28% Viscose FR, 22% Modacrylic, 18% Cotton, 4% Elastane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance Chillout Pro Sport Socks\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Chillout_Pro_Sport_Ultra_Lightweight_Image_600x600.png?v=1723841723\" alt=\"Chillout Pro Sport SOCKS TEMP IMAGE\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Chillout_Pro_Sport_Temperature_Technology_Image_600x600.png?v=1723841088\" alt=\"Chillout Pro Sport SOCKS TEMP GRAPH IMAGE\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSizing and Usage\u003c\/h2\u003e\n\u003cp\u003eEnsure that your Chillout Pro Sport garments are not too tight, as this reduces the level of protection, and that they are also comfortable to wear under the actual conditions of use.\u003c\/p\u003e\n\u003cp\u003eIn order to obtain the maximum protection, all the clothing required in Apendix L (Chaper III, Article 2) to the FIA International Sporting Code should be used.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Chillout_Pro_Sport_FIA_and_SFi_Approved_Image_600x600.png?v=1723841087\" alt=\"Chillout Pro Sport SOCKS FIA SFI IMAGE\" style=\"margin-bottom: 16px; float: none;\"\u003eWearers are warned of the particular vulnerability of the neck, wrists, and ankles. The neck, wrist, and ankles shall always be covered by at least two articles of protective clothing.\u003c\/p\u003e\n\u003cp\u003eThe balaclava and top underlayers shall overlap by a minimum of 3cm \/ 1.2\" around the driver's neck, except at the front center line where there shall be 8cm \/ 3.2\" overlap. The top and bottom underlayers shall overlap by a minimum of 7cm \/ 2.8\" around the drivers waist.\u003c\/p\u003e\n\u003ch2\u003eMaintenance of Chillout Pro Sport Socks\u003c\/h2\u003e\n\u003cp\u003eChillout Pro Sport Flame Resistant underwear must be cleaned and ironed according to the instructions on the label and always to be handled with care.  Drivers should replace any and all items as soon as they show signs of wear.  Please note that the materials are light sensitive and should not be exposed to direct sunlight for a prolonged period of time.  Sunlight especially can cause changes in the shade of colors and begin the premature aging of the materials.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Screen_Shot_2024-08-16_at_3.31.36_PM_600x600.png?v=1723840678\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eEmbroidery\/Labels on Chillout Pro Sport Socks\u003c\/h2\u003e\n\u003cp\u003eProtective clothing, while designed to offer protection against heat and flames, may not safeguard against all potential hazards encountered in automobile racing. It is essential that users adhere to the guidelines outlined in this manual. Proper sizing and usage are imperative for optimal protection. Users should ensure that garments are not overly tight, as this can compromise protection levels, and that they are comfortable to wear under actual usage conditions. For maximum protection, it is recommended to utilize all clothing items specified in Appendix L (Chapter III, Article 2) of the FIA International Sporting Code. Wearers should pay particular attention to the vulnerability of the neck, wrists, and ankles, ensuring they are covered by at least two articles of protective clothing. Specific overlap measurements are provided for various garment combinations, detailed within this manual. Embroidery and badges should be applied in accordance with fireproof standards outlined in ISO 15025. Only the garment manufacturer is authorized to apply advertising through printing or transfers, and certification from the manufacturer is necessary for any customized garments. Any alterations or customizations not meeting these standards may invalidate the garment's homologation, potentially resulting in penalties or disqualification during events. In case of uncertainty regarding advertising additions, it is advisable to consult the manufacturer.\u003c\/p\u003e\n\u003ch2\u003eCleaning\/Maintenance of Chillout Pro Sport Socks\u003c\/h2\u003e\n\u003cp\u003eThe clothing items must be cleaned and ironed following the instructions provided on the label and handled with due care and attention at all times. Garments showing signs of wear should be replaced promptly. It is important to be aware that the materials used in the clothing are sensitive to light and should not be exposed to direct sunlight for prolonged periods. Exposure to sunlight can result in changes to the colors and premature aging of the materials. If your clothing sustains damage such as tears, abrasions, or exposure to heat and flames, it must be replaced. However, if minor tears can be repaired, the same materials and fabrics originally used in manufacturing must be utilized for the repair. Chillout Systems bears no responsibility for any damage incurred by users or third parties due to improper use, abuse, or incorrect maintenance of the clothing, including any improperly repaired garments. \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Chillout_Pro_Sport_anti-bacterial_Image_600x600.png?v=1723841088\" alt=\"Chillout Pro Sport SOCKS ANTI-BACTERIAL IMAGE\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eEEC Certification\/Guarantee for Chillout Pro Sport Socks\u003c\/h2\u003e\n\u003cp\u003eChillout Systems clothing is certified in compliance with Directive 89\/686\/EEC and the essential safety requirements outlined in Document II of the directive. Certification has been issued by CSI s.P.a.'s head office, a certified body of the European Commission (No. 0497), with additional production controls conducted by CSI s.P.a. itself.\u003c\/p\u003e","brand":"Chillout Systems","offers":[{"title":"Black \/ Small","offer_id":45957655199963,"sku":"COPSSKBKS","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Medium","offer_id":45957751800027,"sku":"COPSSKBKM","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large","offer_id":45957751832795,"sku":"COPSSKBKL","price":89.99,"currency_code":"USD","in_stock":false},{"title":"White \/ Small","offer_id":45957655232731,"sku":"COPSSKWTS","price":89.99,"currency_code":"USD","in_stock":true},{"title":"White \/ Medium","offer_id":45957751865563,"sku":"COPSSKWTM","price":89.99,"currency_code":"USD","in_stock":true},{"title":"White \/ Large","offer_id":45957751898331,"sku":"COPSSKWTL","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Chillout_Pro_Sport_Socks_Black_Image.png?v=1744298156"},{"product_id":"sabelt-ui-100-nomex-socks-8856-2000","title":"Sabelt UI-100 Nomex Racing Socks FIA 8856-2000 Certified","description":"\u003ch1\u003eSabelt UI-100 Nomex Socks\u003c\/h1\u003e\n\u003cp\u003eThe Sabelt UI-100 Nomex Racing Socks are engineered for serious drivers who demand fire-resistant comfort and protection at every level of motorsport. Constructed from a premium blend of Aramidic (Nomex) and Viscose fibers, these calf-length socks offer a soft, anatomical fit designed to perform under pressure—whether you're pulling long stints on track or competing in FIA-sanctioned events.\u003c\/p\u003e\n\u003cp\u003eHomologated to the FIA 8856-2000 standard, the Sabelt UI-100 socks are designed to reduce heat transfer while maintaining breathability, making them a must-have in your fireproof racing gear lineup. Lightweight, durable, and made in Italy, these racing socks provide full lower-leg coverage without compromising feel or flexibility.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2000 approved\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aramidic (Nomex) and Viscose blend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Calf-length for extended coverage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfort:\u003c\/strong\u003e Soft-touch construction for long stints and reduced fatigue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Italy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompetition Motorsport | sales@competitionmotorsport.com | (844) 438-7244\u003c\/strong\u003e\u003c\/p\u003e","brand":"Sabelt S.p.A.","offers":[{"title":"White \/ Small","offer_id":46573617479899,"sku":"Z150UI100SBBS","price":22.66,"currency_code":"USD","in_stock":false},{"title":"White \/ Large","offer_id":46573619970267,"sku":"Z150UI100SBBL","price":22.66,"currency_code":"USD","in_stock":true},{"title":"White \/ X-Large","offer_id":46573620003035,"sku":"Z150UI100SBBXL","price":22.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sabelt-UI-100-Socks-White-On-Sale-Image.jpg?v=1745609017"},{"product_id":"sparco-hyperspeed-socks","title":"Sparco Hyperspeed Socks","description":"\u003ch1\u003eSparco Hyperspeed Sim Racing Socks\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_Hyperspeed_Socks_Hero_Image.jpg?v=1780684671\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sparco Hyperspeed is the first high-performance sock engineered specifically for sim racing without the need for driving shoes. Designed for serious sim racers who demand maximum pedal feel, the Hyperspeed delivers exceptional comfort, grip, and control while maintaining durability through long racing sessions. Its lightweight microfiber construction promotes breathability, while strategically reinforced areas provide support exactly where sim racers need it most.\u003c\/p\u003e\n\u003ch2\u003eUltimate Pedal Feel for Competitive Sim Racing\u003c\/h2\u003e\n\u003cp\u003eTraditional footwear can reduce sensitivity and connection to the pedals. The Sparco Hyperspeed eliminates that barrier by creating a direct interface between driver and pedal set. Featuring a specialized grip pattern on the outer foot, reinforced Cordura heel construction, and a removable support insole, the Hyperspeed gives sim racers greater confidence during precision braking, throttle modulation, and heel-toe techniques.\u003c\/p\u003e\n\u003ch2\u003eSparco Hyperspeed Socks Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNylon microfiber construction for outstanding comfort and breathability\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for sim racing without driving shoes\u003c\/li\u003e\n\u003cli\u003eCordura-reinforced heel improves durability in high-wear areas\u003c\/li\u003e\n\u003cli\u003ePrinted grip pattern enhances pedal control and feedback\u003c\/li\u003e\n\u003cli\u003eRemovable insole provides additional support and customization\u003c\/li\u003e\n\u003cli\u003eHeel pull tab allows easy on-and-off use\u003c\/li\u003e\n\u003cli\u003eLightweight design maximizes pedal feel and sensitivity\u003c\/li\u003e\n\u003cli\u003eAvailable in four color options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco Hyperspeed Socks Size Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e38\/39 = US Men's 5-6\u003c\/li\u003e\n\u003cli\u003e40\/41 = US Men's 6-7.5\u003c\/li\u003e\n\u003cli\u003e42\/43 = US Men's 8-9.5\u003c\/li\u003e\n\u003cli\u003e44\/45 = US Men's 10-11.5\u003c\/li\u003e\n\u003cli\u003e46\/47 = US Men's 12-13\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco Hyperspeed Socks FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes the Sparco Hyperspeed different from regular socks?\u003c\/strong\u003e\u003cbr\u003eThe Hyperspeed was specifically designed for sim racing, incorporating grip zones, reinforcement areas, and support features that improve pedal control and comfort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I wear the Hyperspeed with racing shoes?\u003c\/strong\u003e\u003cbr\u003eWhile possible, the Hyperspeed was engineered to be used without shoes to maximize pedal sensitivity and feedback.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the removable insole?\u003c\/strong\u003e\u003cbr\u003eThe removable insole provides additional arch support and comfort while allowing racers to customize the feel based on personal preference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the heel reinforced with Cordura?\u003c\/strong\u003e\u003cbr\u003eCordura reinforcement increases durability in high-friction areas, extending the life of the sock during frequent sim racing use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the grip patterns help with pedal control?\u003c\/strong\u003e\u003cbr\u003eYes. The printed grip zones improve traction against pedal surfaces, helping drivers maintain consistent foot placement and control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these suitable for long endurance sim racing sessions?\u003c\/strong\u003e\u003cbr\u003eAbsolutely. The breathable microfiber construction helps manage heat and moisture while maintaining comfort during extended racing sessions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-socks-sizing-guide.jpg?v=1750113939\"\u003e\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Black \/ 38\/39","offer_id":48844392726747,"sku":"01290NR3839","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 40\/41","offer_id":48844392759515,"sku":"01290NR4041","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 42\/43","offer_id":48844392792283,"sku":"01290NR4243","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 44\/45","offer_id":48844392825051,"sku":"01290NR4445","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 46\/47","offer_id":48844392857819,"sku":"01290NR4647","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_Hyperspeed_Sock_Images.jpg?v=1780679655"},{"product_id":"sabelt-ui-600-underlayer-package","title":"Sabelt UI-600 Underlayer Package (Regular)","description":"\u003cp\u003eSabelt UI-600 Premium Underlayer Package - everything you need all in one place.  Don't guess at what you need, let us assemble the perfect package for you.\u003c\/p\u003e","brand":"Sabelt S.p.A.","offers":[{"title":"Default Title","offer_id":50518154150107,"sku":"5cff9f0a-06fe-4ed7-b19d-5da38b7c74a9","price":622.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/predict-02bb638e-f2e1-4139-8bd0-806cc772752c-2.webp?v=1790373231"},{"product_id":"sabelt-ui-600-underlayers-slim","title":"Sabelt UI-600 FIA 8856-2018 Nomex Underwear Package (Slim)","description":"\u003ch1\u003eComplete Sabelt UI-600 FIA Racing Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sabelt-ui-600-nomex-racing-underwear-bundle-image2.jpg?v=1790718724\" alt=\"Sabelt UI-600 Bundle consisting of a black long-sleeve compression shirt, black leggings, black knee-high socks, and a black balaclava mask, displayed against a dark racing-style background with Sabelt branding and certification text.\"\u003e\u003c\/p\u003e\n\u003cp\u003eGet fully equipped with Sabelt's premium UI-600 racing underwear system in one complete package. The Sabelt UI-600 Nomex Racing Underwear Bundle combines the UI-600 slim-fit shirt, slim-fit pants, balaclava, and racing socks for complete FIA 8856-2018 certified fire-resistant protection underneath your racing suit.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sabelt-UI-600-Slim-Fit_Underlayer-Underwear-Collection-Image.jpg?v=1745610602\" alt=\"Sabelt UI-600 Nomex Racing Underwear Bundle FIA 8856-2018\"\u003e\u003c\/p\u003e\n\u003cp\u003eDeveloped for drivers who want maximum comfort without sacrificing protection, the UI-600 collection uses advanced stretch-fit construction and lightweight technical materials to provide exceptional breathability and freedom of movement. The nearly seamless design helps reduce pressure points and irritation during long sessions in the car.\u003c\/p\u003e\n\u003cp\u003eSabelt combines Lenzing FR fiber with modacrylic and elastane to create an underlayer system that is lightweight, durable, moisture-managing, and highly elastic. The two-way stretch warp-knit construction follows the driver's movements while helping keep the body dry and comfortable during demanding track sessions, sprint races, and endurance events.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sabelt UI-600 Slim-Fit Nomex Racing Shirt\u003c\/strong\u003e – FIA 8856-2018 certified lightweight racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sabelt UI-600 Nomex Racing Balaclava\u003c\/strong\u003e – FIA 8856-2018 certified stretch-fit head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sabelt UI-600 Slim-Fit Nomex Underlayer Pants\u003c\/strong\u003e – FIA 8856-2018 certified lightweight racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sabelt UI-600 Nomex Racing Socks\u003c\/strong\u003e – FIA 8856-2018 certified fire-resistant racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSabelt UI-600 Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Certification:\u003c\/strong\u003e FIA 8856-2018 certified racing underwear system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Driver Underlayer:\u003c\/strong\u003e Includes shirt, pants, balaclava, and socks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStretch-Fit Construction:\u003c\/strong\u003e Designed to conform closely to the driver's body while maintaining freedom of movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNearly Seamless Design:\u003c\/strong\u003e Helps minimize irritation and pressure points inside the racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathable Performance:\u003c\/strong\u003e Designed to help manage heat and moisture during demanding driving conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnical Materials:\u003c\/strong\u003e Lenzing FR fiber, modacrylic, and elastane construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Way Stretch:\u003c\/strong\u003e Warp-knit fabric delivers excellent elasticity and mobility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight:\u003c\/strong\u003e Built to reduce unnecessary bulk underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable:\u003c\/strong\u003e High wear resistance for repeated motorsport use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Italy:\u003c\/strong\u003e Premium Sabelt motorsport construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy the Complete UI-600 Bundle?\u003c\/h2\u003e\n\u003cp\u003eA properly equipped driver needs more than just a racing suit. FIA-rated fire-resistant underwear provides an additional layer of protection between the driver and the suit while also improving comfort during long periods in the cockpit.\u003c\/p\u003e\n\u003cp\u003eThis bundle makes it easy to build a complete Sabelt UI-600 underlayer system without purchasing each component separately. Choose the appropriate options for the shirt, pants, balaclava, and socks to create your complete racing underwear setup.\u003c\/p\u003e\n\u003ch2\u003eSizing\u003c\/h2\u003e\n\u003cp\u003eThe UI-600 shirt and pants use Sabelt racing underwear sizing. Select the appropriate size for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/SIZE-CHART-UNDERLAYER-SABELT-CMS.png?v=1728940708\" alt=\"Sabelt UI-600 Racing Underwear Shirt and Pants Size Chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eSabelt UI-600 racing socks are sized using European shoe sizes. Select the sock size that corresponds with your normal footwear size.\u003c\/p\u003e\n\u003ch2\u003eFIA 8856-2018 Certified Racing Underwear\u003c\/h2\u003e\n\u003cp\u003eThe Sabelt UI-600 collection is designed for motorsport applications requiring FIA 8856-2018 certified fire-resistant driver apparel. Pair the complete UI-600 underwear system with an FIA-approved racing suit, gloves, shoes, and helmet for a professional motorsport safety setup.\u003c\/p\u003e","brand":"Sabelt S.p.A.","offers":[{"title":"Default Title","offer_id":50536405795035,"sku":"e3f6ada3-0e8e-4c64-8060-e0f7c78d2f73","price":622.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sabelt-ui-600-nomex-racing-underwear-bundle-image.jpg?v=1790714086"},{"product_id":"omp-one-evo-underlayers","title":"OMP ONE EVO Nomex Racing Underwear Bundle | FIA 8856-2018","description":"\u003ch2\u003eComplete OMP ONE EVO FIA Racing Underwear Package\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-one-evo-nomex-racing-underwear-bundle-image.jpg?v=1790715084\" alt=\"OMP ONE EVO Nomex racing underwear bundle with shirt, pants, balaclava and socks FIA 8856-2018\"\u003e\u003c\/p\u003e\n\u003cp\u003eBuild a complete professional-grade racing underlayer system with the OMP ONE EVO Nomex Racing Underwear Bundle. This package combines the ONE EVO shirt, ONE EVO pants, ONE EVO balaclava, and OMP ONE Nomex socks into one complete FIA 8856-2018 homologated setup designed for serious motorsport use.\u003c\/p\u003e\n\u003cp\u003eOMP's ONE EVO underwear range is engineered around lightweight fire-resistant materials, high breathability, and an athletic fit. Strategically positioned 3D knitted inserts help improve airflow and moisture management in high-perspiration areas while maintaining the flame protection required for competition.\u003c\/p\u003e\n\u003cp\u003eThe shirt and pants are designed to work with OMP's Dry System racing suits, including the ONE and Tecnica Evo ranges, aligning breathable zones between the underlayer and suit to help improve driver comfort during demanding track sessions and endurance racing.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP ONE EVO Nomex Shirt\u003c\/strong\u003e – FIA 8856-2018 homologated long-sleeve racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP ONE EVO Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 homologated lightweight racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP ONE EVO Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 homologated open-face racing balaclava\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP ONE Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 homologated fire-resistant racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOMP ONE EVO Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 certified racing underwear system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Underlayer Package:\u003c\/strong\u003e Includes shirt, pants, balaclava, and socks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3D Dry System Technology:\u003c\/strong\u003e High-breathability knitted inserts help manage heat and moisture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthletic Fit:\u003c\/strong\u003e Close-fitting design helps the garments sit smoothly beneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Flat Seams:\u003c\/strong\u003e Helps reduce rubbing and pressure points during long driving sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Designed to minimize bulk without sacrificing protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breathability:\u003c\/strong\u003e Strategic ventilation zones help improve driver comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire-Resistant Materials:\u003c\/strong\u003e Developed specifically for professional motorsport use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMP Dry System Compatible:\u003c\/strong\u003e Designed to complement OMP ONE and Tecnica Evo racing suits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOMP ONE EVO Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe OMP ONE EVO long-sleeve shirt features a high neck for additional coverage and uses a soft, fire-resistant seamless fabric for a comfortable fit underneath the driver's suit.\u003c\/p\u003e\n\u003cp\u003e3D Cube breathable inserts are positioned around major perspiration zones, including the sides, shoulders, lower back, and inside the arms. These areas help moisture evaporate while preserving the protection required for FIA competition.\u003c\/p\u003e\n\u003ch2\u003eOMP ONE EVO Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe ONE EVO pants use an athletic cut and ultra-lightweight aramid fabric to provide a close, smooth fit beneath a racing suit. Strategically placed 3D knitted inserts improve ventilation and align with compatible OMP racing suits as part of the OMP Dry System.\u003c\/p\u003e\n\u003cp\u003eUltra-flat seams help minimize irritation and make the pants especially well suited for longer track sessions and endurance racing.\u003c\/p\u003e\n\u003ch2\u003eOMP ONE EVO Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe ONE EVO balaclava features an anatomical open-face design made from lightweight fire-resistant material. Ultra-flat seams help reduce pressure points underneath the helmet, while breathable 3D material around the face improves ventilation and moisture management.\u003c\/p\u003e\n\u003ch2\u003eOMP ONE Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eOMP ONE Nomex socks use advanced knitting techniques to create differentiated pressure areas designed to improve comfort around the foot and lower leg while driving. The lightweight fire-resistant construction completes the ONE EVO underlayer system from head to toe.\u003c\/p\u003e\n\u003ch2\u003eSizing\u003c\/h2\u003e\n\u003cp\u003eThe OMP ONE EVO shirt and pants use OMP racing underwear sizing. Select the appropriate size for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/OMPunderlayersizingchart2026.jpg?v=1780418648\" alt=\"OMP ONE EVO Nomex racing underwear size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe ONE EVO shirt is available in sizes ranging from XS\/S through 3XL, depending on color and availability. Balaclava and sock sizing should be selected separately to achieve the best fit.\u003c\/p\u003e\n\u003ch2\u003eFIA 8856-2018 Racing Underwear\u003c\/h2\u003e\n\u003cp\u003eThe OMP ONE EVO system is designed for drivers who want a premium FIA-certified underlayer with an emphasis on cooling, moisture management, low bulk, and comfort. Combined with an FIA-approved racing suit, gloves, shoes, and helmet, it provides a complete professional racing apparel setup.\u003c\/p\u003e","brand":"OMP Racing","offers":[{"title":"Default Title","offer_id":50536415068379,"sku":"7baac328-0a64-46d0-91d4-868ad88f0e61","price":726.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-one-evo-nomex-racing-underwear-bundle-image.jpg?v=1790715084"},{"product_id":"omp-first-underlayers","title":"OMP FIRST Nomex Racing Underwear Bundle | FIA 8856-2018 \u0026 SFI","description":"\u003ch1\u003eComplete OMP FIRST Racing Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-first-nomex-racing-underwear-bundle-image.jpg?v=1790715987\" alt=\"OMP FIRST Nomex racing underwear bundle with shirt, pants, balaclava and socks FIA 8856-2018 and SFI 3.3\/5\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe OMP FIRST Nomex Racing Underwear Bundle gives drivers a complete fire-resistant underlayer system in one easy package. It combines the OMP FIRST shirt, pants, balaclava, and socks for reliable motorsport protection, comfort, and value.\u003c\/p\u003e\n\u003cp\u003eDesigned as OMP's entry-level professional racing underwear system, the FIRST collection uses lightweight fire-resistant materials, comfortable flat seams, and a regular fit that works well for track days, club racing, and competitive motorsport.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP FIRST Nomex Shirt\u003c\/strong\u003e – FIA 8856-2018 and SFI homologated racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP FIRST Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 and SFI homologated racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP FIRST Balaclava\u003c\/strong\u003e – FIA 8856-2018 and SFI 3.3\/5 certified fire-resistant balaclava\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x OMP FIRST Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 homologated fire-resistant racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOMP FIRST Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Certification:\u003c\/strong\u003e FIA 8856-2018 certified components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFI Certification:\u003c\/strong\u003e SFI homologation on applicable FIRST garments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Underlayer System:\u003c\/strong\u003e Includes shirt, pants, balaclava, and socks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire-Resistant Construction:\u003c\/strong\u003e Designed specifically for motorsport safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Seams:\u003c\/strong\u003e Helps reduce rubbing and irritation underneath a racing suit and helmet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathable Fabric:\u003c\/strong\u003e Helps manage heat and moisture during demanding driving sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegular Fit:\u003c\/strong\u003e Comfortable, ergonomic cut without excessive compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Value:\u003c\/strong\u003e A strong choice for drivers who want certified protection at a budget-friendly price point\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOMP FIRST Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe OMP FIRST Nomex Shirt is a lightweight fire-resistant racing top built for drivers who want certified protection without unnecessary complexity. Its regular fit, shaped neck, raglan sleeves, and flat seams help provide comfortable movement underneath a racing suit.\u003c\/p\u003e\n\u003cp\u003eThe breathable material helps manage moisture during long track sessions while maintaining the fire protection required for motorsport competition.\u003c\/p\u003e\n\u003ch2\u003eOMP FIRST Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe OMP FIRST Nomex Pants use lightweight fire-resistant fabric with flat seams, an elastic waistband, and close-fitting ankle cuffs for a secure and comfortable fit beneath a racing suit.\u003c\/p\u003e\n\u003cp\u003eThe regular-cut design provides good freedom of movement and makes the FIRST pants suitable for both amateur and professional motorsport use.\u003c\/p\u003e\n\u003ch2\u003eOMP FIRST Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe OMP FIRST Balaclava provides fire-resistant head and neck protection with a lightweight, stretchable design that fits smoothly underneath a racing helmet. Flat seams help reduce pressure points, while the breathable construction helps improve comfort in hot cockpit conditions.\u003c\/p\u003e\n\u003cp\u003eThe balaclava is certified to FIA 8856-2018 and SFI 3.3\/5 standards.\u003c\/p\u003e\n\u003ch2\u003eOMP FIRST Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eOMP FIRST Nomex Socks use soft-knitted fire-resistant material in a mid-calf design. The thin construction helps maintain pedal feel while moisture-wicking material helps keep the feet dry and comfortable during racing.\u003c\/p\u003e\n\u003ch2\u003eSizing\u003c\/h2\u003e\n\u003cp\u003eThe OMP FIRST shirt and pants are available in multiple sizes and colors depending on inventory. Select the appropriate size and color for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003eThe balaclava and socks should be selected independently to ensure the best fit.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-nomex-socks-size-guide.jpg?v=1750112392\" alt=\"OMP FIRST Nomex racing socks size guide\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFIA 8856-2018 Racing Underwear\u003c\/h2\u003e\n\u003cp\u003eThe OMP FIRST collection is designed for drivers who want dependable certified racing underwear at an accessible price point. Combined with an approved racing suit, gloves, shoes, and helmet, the FIRST system provides a complete fire-resistant foundation for motorsport use.\u003c\/p\u003e","brand":"OMP Racing","offers":[{"title":"Default Title","offer_id":50536444690651,"sku":"a033c4ed-383c-43db-abdc-45fe9879e864","price":428.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/omp-first-nomex-racing-underwear-bundle-image.jpg?v=1790715987"},{"product_id":"chillout-pro-underlayers","title":"Chillout Pro Sport Racing Underwear Bundle | FIA 8856-2018 \u0026 SFI","description":"\u003ch1\u003eComplete Chillout Pro Sport Racing Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/chillout-pro-sport-racing-underwear-bundle-image..jpg?v=1790716781\" alt=\"Chillout Pro Sport racing underwear bundle with shirt, pants, balaclava and socks FIA 8856-2018 and SFI 3.3\"\u003e\u003c\/p\u003e\n\u003cp\u003eBuild a complete fire-resistant racing underlayer system with the Chillout Pro Sport Racing Underwear Bundle. This package combines the Pro Sport underlayer shirt, pants, dual-layer balaclava, and racing socks into one coordinated FIA 8856-2018 and SFI-rated setup.\u003c\/p\u003e\n\u003cp\u003eChillout Pro Sport underlayers are engineered around lightweight construction, breathability, thermal regulation, and driver comfort. The technical fabric helps manage heat and moisture inside the cockpit while maintaining the fire-resistant protection required for competitive motorsport.\u003c\/p\u003e\n\u003cp\u003eAvailable in multiple colors and sizes, the Pro Sport system makes it easy to configure a complete head-to-toe underlayer package for track days, club racing, endurance events, and professional competition.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Chillout Pro Sport Dual Layer Balaclava\u003c\/strong\u003e – FIA 8856-2018 and SFI-rated fire-resistant head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Chillout Pro Sport Underlayer Shirt\u003c\/strong\u003e – Lightweight fire-resistant long-sleeve racing top\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Chillout Pro Sport Underlayer Pants\u003c\/strong\u003e – Lightweight fire-resistant racing bottoms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Chillout Pro Sport Socks\u003c\/strong\u003e – Fire-resistant racing socks designed to complete the Pro Sport system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChillout Pro Sport Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 approved components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFI Rated:\u003c\/strong\u003e Designed to meet applicable SFI fire-resistant apparel requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Underlayer System:\u003c\/strong\u003e Shirt, pants, balaclava, and socks included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal-Regulating Fabric:\u003c\/strong\u003e Designed to help manage driver body temperature in demanding cockpit conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Lightweight Construction:\u003c\/strong\u003e Helps minimize bulk underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breathability:\u003c\/strong\u003e Technical materials promote airflow and moisture management\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStretch Construction:\u003c\/strong\u003e Provides a close, comfortable fit with freedom of movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibacterial Technology:\u003c\/strong\u003e Integrated fabric technology helps control odor during extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Colors:\u003c\/strong\u003e Shirt, pants, and balaclava options are available in black, charcoal, and white depending on inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChillout Pro Sport Underlayer Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Chillout Pro Sport Shirt uses an ultra-lightweight fire-resistant fabric engineered to improve airflow and comfort underneath a racing suit. Its stretch construction provides a close fit without unnecessarily restricting driver movement.\u003c\/p\u003e\n\u003cp\u003eThe shirt is made from a technical blend of 42% M-Aramide, 42% Viscose FR, and 16% EA and is homologated to FIA 8856-2018 and applicable SFI standards.\u003c\/p\u003e\n\u003ch2\u003eChillout Pro Sport Underlayer Pants\u003c\/h2\u003e\n\u003cp\u003eThe Pro Sport Pants use the same lightweight, breathable construction as the shirt to create a coordinated lower-body layer. Their stretch fabric allows the garment to sit smoothly underneath a fire suit while helping manage heat and moisture during long sessions.\u003c\/p\u003e\n\u003cp\u003eThe pants are available in sizes XS through XXL and in multiple colors depending on availability.\u003c\/p\u003e\n\u003ch2\u003eChillout Pro Sport Dual Layer Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Chillout Pro Sport Dual Layer Balaclava provides additional fire-resistant protection around the driver's head and neck while maintaining the lightweight and breathable characteristics of the Pro Sport system.\u003c\/p\u003e\n\u003cp\u003eThe balaclava is FIA 8856-2018 homologated and SFI 3.3 rated, with a stretchable one-size design available in black, charcoal, or white depending on inventory.\u003c\/p\u003e\n\u003ch2\u003eChillout Pro Sport Socks\u003c\/h2\u003e\n\u003cp\u003eChillout Pro Sport racing socks complete the underlayer system with lightweight fire-resistant protection for the feet and lower legs. Their technical knit construction is designed to maintain comfort and pedal feel while helping manage moisture inside racing shoes.\u003c\/p\u003e\n\u003cp\u003eThe socks are available in Small, Medium, and Large with black and white color options depending on inventory.\u003c\/p\u003e\n\u003ch2\u003eSizing\u003c\/h2\u003e\n\u003cp\u003eChillout Pro Sport shirts and pants are available in sizes XS through XXL. Select the appropriate size and color for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003eThe balaclava is one size, while Pro Sport socks are available in Small, Medium, and Large. Each component should be selected independently for the best overall fit.\u003c\/p\u003e\n\u003cp\u003eFor maximum protection and comfort, Chillout recommends that garments should fit properly without being excessively tight. The shirt and pants should maintain appropriate overlap at the waist, while the balaclava and shirt should provide continuous coverage around the neck.\u003c\/p\u003e\n\u003ch2\u003eFIA 8856-2018 \u0026amp; SFI Racing Protection\u003c\/h2\u003e\n\u003cp\u003eThe Chillout Pro Sport collection is designed for racers who want certified fire-resistant protection with an emphasis on lightweight construction, airflow, and cockpit comfort. Combined with an approved racing suit, gloves, shoes, and helmet, the Pro Sport system creates a complete foundation for competitive motorsport apparel.\u003c\/p\u003e","brand":"Chillout Systems","offers":[{"title":"Default Title","offer_id":50536478572763,"sku":"321c530c-e05a-49c5-8c26-07f0b3b7e6be","price":598.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/chillout-pro-sport-racing-underwear-bundle-image..jpg?v=1790716781"},{"product_id":"alpinestars-race-underlayer-package","title":"Alpinestars Race v3 Nomex Racing Underwear Bundle | FIA 8856-2018","description":"\u003ch1\u003eComplete Alpinestars Race Nomex Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-race-nomex-racing-underwear-bundle-image.jpg?v=1790717697\" alt=\"Alpinestars Race Nomex racing underwear bundle with balaclava, shirt, pants and socks FIA 8856-2018 certified\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Alpinestars Race v3 Nomex Racing Underwear Bundle gives drivers a complete FIA 8856-2018 certified fire-resistant underlayer system in one package. This bundle combines the Race v3 balaclava, Race v3 shirt, Race v3 pants, and Race v4 Nomex socks for head-to-toe protection underneath your racing suit.\u003c\/p\u003e\n\u003cp\u003eDeveloped using Formula 1-inspired technology, the Alpinestars Race series focuses on lightweight construction, breathability, engineered stretch, and soft-touch comfort. The advanced flame-resistant materials provide the protection required for competitive motorsport while helping reduce bulk and heat inside the cockpit.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v3 Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 certified fire-resistant head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v3 Nomex Underlayer Shirt\u003c\/strong\u003e – Lightweight FIA-certified long-sleeve racing base layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v3 Nomex Pants\u003c\/strong\u003e – Lightweight FIA-certified racing underlayer pants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v4 Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 certified fire-resistant racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 certified components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Underlayer Package:\u003c\/strong\u003e Includes balaclava, shirt, pants, and socks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormula 1 Specification Design:\u003c\/strong\u003e Race v3 base layers developed for high-level motorsport use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLenzing FR Material:\u003c\/strong\u003e Flame-resistant natural viscose fiber with thermal insulation properties\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered Stretch:\u003c\/strong\u003e Elastane fibers improve elasticity, movement, and overall comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Designed to minimize bulk underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breathability:\u003c\/strong\u003e Technical fabrics help improve comfort during demanding track sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft-Touch Fabric:\u003c\/strong\u003e Smooth material helps reduce irritation during extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Seam Construction:\u003c\/strong\u003e Helps reduce pressure points underneath the helmet and racing suit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race v3 Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 Balaclava is an exceptionally lightweight and thin Formula 1-specification underlayer designed to fit comfortably underneath a racing helmet. Flat seams help minimize pressure points, while the soft-touch material and stretch construction provide a secure and comfortable fit.\u003c\/p\u003e\n\u003cp\u003eA dedicated mouth opening also provides convenient access for a hydration tube during long racing sessions.\u003c\/p\u003e\n\u003ch2\u003eAlpinestars Race v3 Nomex Underlayer Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 Nomex Shirt combines lightweight fire-resistant protection with excellent breathability and flexibility. Its advanced base-layer construction incorporates elastane fibers for engineered stretch and a relaxed fit designed for comfort underneath a driving suit.\u003c\/p\u003e\n\u003cp\u003eLenzing FR material provides flame resistance and thermal insulation while helping manage driver comfort in high-temperature racing environments.\u003c\/p\u003e\n\u003ch2\u003eAlpinestars Race v3 Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 Nomex Pants use the same advanced flame-resistant and stretch technology as the matching shirt. Their lightweight construction and relaxed fit allow the pants to sit comfortably beneath a racing suit while maintaining freedom of movement.\u003c\/p\u003e\n\u003cp\u003eThe soft-touch textile and Lenzing FR material help provide a balance of protection, breathability, and comfort for sprint, endurance, and track-day use.\u003c\/p\u003e\n\u003ch2\u003eAlpinestars Race v4 Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eAlpinestars Race v4 Nomex Socks complete the bundle with lightweight FIA-certified protection for the feet and lower legs. Their ergonomic construction is designed for excellent comfort inside racing shoes, while flat seams help minimize irritation during extended driving sessions.\u003c\/p\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 shirt and pants are available in multiple sizes and colors depending on inventory. Select the appropriate size and color for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-underlayer-size_chart-image-CMS.png?v=1729712835\" alt=\"Alpinestars Race v3 Nomex underlayer shirt and pants size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eRace v4 socks use separate footwear sizing. Select the sock size that corresponds with your normal shoe size.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-Underlayer-Sock-Size-Chart-CMS.png?v=1729715167\" alt=\"Alpinestars Race v4 Nomex racing sock size chart\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFIA 8856-2018 Racing Underwear\u003c\/h2\u003e\n\u003cp\u003eThe Alpinestars Race underlayer system is built for drivers who want lightweight FIA-certified fire protection with an emphasis on breathability, stretch, and comfort. Combined with an approved racing suit, gloves, shoes, and helmet, this bundle provides a complete fire-resistant foundation for competitive motorsport.\u003c\/p\u003e","brand":"Alpinestars","offers":[{"title":"Default Title","offer_id":50536565571803,"sku":"a7ea7019-6c13-4534-bc64-6c944b04e5b7","price":534.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-race-nomex-racing-underwear-bundle-image.jpg?v=1790717697"},{"product_id":"bundle-product-10","title":"Alpinestars Race Underlayer Package  | FIA 8856-2018","description":"\u003ch1\u003e Alpinestars Race Underlayer Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-race-underlayer-package-image.jpg?v=1790779662\" alt=\"Alpinestars Race Underlayer Package including a light gray long-sleeve top, matching pants, white balaclava, and white socks, displayed with FIA Approved badge on a dark racing-themed background.\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Alpinestars Race Underlayer Package brings together four FIA 8856-2018 certified racing essentials in one complete bundle. It includes the Race v3 Nomex balaclava, Race v3 underlayer shirt, Race v3 pants, and Race v4 Nomex socks for full fire-resistant coverage underneath your racing suit.\u003c\/p\u003e\n\u003cp\u003eDeveloped using Formula 1 specification technology, the Alpinestars Race v3 underlayer range combines lightweight construction, exceptional breathability, engineered stretch, and soft-touch comfort. Lenzing FR material provides flame resistance and thermal insulation while helping reduce heat stress during demanding driving conditions.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v3 Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 certified lightweight head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v3 Nomex Underlayer Shirt\u003c\/strong\u003e – FIA 8856-2018 certified fire-resistant racing base layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v3 Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 certified lightweight racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars Race v4 Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 certified fire-resistant racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race v3 Underlayer Technology\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 certified components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormula 1 Specification Design:\u003c\/strong\u003e Developed for high-level motorsport use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLenzing FR Material:\u003c\/strong\u003e Natural viscose fiber with flame-resistant and thermal insulation properties\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered Stretch:\u003c\/strong\u003e Elastane fibers provide improved elasticity and freedom of movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Helps reduce bulk underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breathability:\u003c\/strong\u003e Designed to improve comfort during hot and demanding driving sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft-Touch Textile:\u003c\/strong\u003e Provides a comfortable feel against the skin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelaxed Fit:\u003c\/strong\u003e Designed for comfort when worn underneath a driving suit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race v3 Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 Nomex Balaclava is extremely lightweight, thin, and soft to the touch for enhanced comfort underneath a racing helmet. Its stretchable construction uses Alpinestars flame-resistant technology with elastane fibers for improved flexibility and fit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 certified\u003c\/li\u003e\n\u003cli\u003eFlat seams help reduce pressure points\u003c\/li\u003e\n\u003cli\u003eSoft-touch textile for improved comfort\u003c\/li\u003e\n\u003cli\u003eStretch construction for a secure fit\u003c\/li\u003e\n\u003cli\u003eMouth opening allows access for a hydration tube\u003c\/li\u003e\n\u003cli\u003eLenzing FR material provides flame resistance and thermal insulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race v3 Nomex Underlayer Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 Nomex Shirt is a lightweight Formula 1 specification base layer designed to provide excellent breathability, comfort, and fire-resistant protection. Its relaxed fit works comfortably underneath a racing suit while engineered stretch helps maintain freedom of movement.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 certified\u003c\/li\u003e\n\u003cli\u003eLenzing FR fire-resistant material\u003c\/li\u003e\n\u003cli\u003eEngineered elastane stretch\u003c\/li\u003e\n\u003cli\u003eSoft-touch construction\u003c\/li\u003e\n\u003cli\u003eLightweight and highly breathable\u003c\/li\u003e\n\u003cli\u003eDesigned to help reduce heat stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race v3 Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe Race v3 Nomex Pants use the same lightweight, breathable, flame-resistant construction as the matching shirt. Their relaxed fit and stretchable design provide excellent comfort beneath a racing suit without restricting movement.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 certified\u003c\/li\u003e\n\u003cli\u003eLenzing FR flame-resistant material\u003c\/li\u003e\n\u003cli\u003eEngineered elasticity for comfort and mobility\u003c\/li\u003e\n\u003cli\u003eSoft-touch textile\u003c\/li\u003e\n\u003cli\u003eLightweight and breathable construction\u003c\/li\u003e\n\u003cli\u003eDesigned to help reduce heat stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars Race v4 Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eAlpinestars Race v4 Nomex Socks are lightweight, comfortable, durable, and ergonomically designed for demanding motorsport use. Their fire-resistant construction provides protection against heat transfer while flat seams help improve comfort inside racing shoes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 certified\u003c\/li\u003e\n\u003cli\u003eLightweight fire-resistant construction\u003c\/li\u003e\n\u003cli\u003eErgonomic racing fit\u003c\/li\u003e\n\u003cli\u003eFlat seams for long-lasting comfort\u003c\/li\u003e\n\u003cli\u003eDesigned to maintain comfort and pedal feel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eSelect the appropriate size and color for the Race v3 shirt, pants, balaclava, and Race v4 socks independently when configuring your package.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-underlayer-size_chart-image-CMS.png?v=1729712835\" alt=\"Alpinestars Race v3 Nomex underlayer shirt and pants size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eRace v4 socks use separate footwear sizing.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-Underlayer-Sock-Size-Chart-CMS.png?v=1729715167\" alt=\"Alpinestars Race v4 Nomex racing sock size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Alpinestars","offers":[{"title":"Default Title","offer_id":50536728264923,"sku":"91ef5ea2-df97-4578-bae4-cbb33ffa76a5","price":377.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-race-underlayer-package-image.jpg?v=1790779662"},{"product_id":"alpinestars-zx-v3-underlayer-package","title":"Alpinestars ZX V3 Underlayer Package","description":"\u003ch2\u003eComplete Alpinestars ZX EVO v3 Racing Underlayer Package\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-zx-evo-v3-underlayer-package-hero-image.jpg?v=1790779503\" alt=\"Alpinestars ZX EVO v3 Underlayer Package hero image featuring Nomex balaclava, fireproof shirt, underlayer pants, and socks with FIA 8856-2018 and SFI 3.3 certificatio\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Alpinestars ZX EVO v3 Racing Underlayer Bundle brings together four premium Alpinestars base-layer components into one complete motorsport package. It includes the ZX EVO v3 balaclava, ZX EVO v3 fireproof shirt, ZX EVO v3 underlayer pants, and ZX v4 Nomex socks for complete fire-resistant coverage underneath your racing suit.\u003c\/p\u003e\n\u003cp\u003eBuilt to Formula 1 specifications, the ZX EVO v3 range combines lightweight construction, LENZING FR flame-resistant fibers, advanced moisture management, engineered stretch, and high breathability. The result is a premium underlayer system designed to help reduce heat stress and improve driver comfort during demanding track sessions and endurance events.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars ZX EVO v3 Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 and SFI 3.3 certified fire-resistant head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars ZX EVO v3 Fireproof Shirt\u003c\/strong\u003e – FIA 8856-2018 and SFI 3.3 homologated Formula 1-spec racing base layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars ZX EVO v3 Underlayer Pants\u003c\/strong\u003e – FIA 8856-2018 and SFI 3.3 certified lightweight racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Alpinestars ZX v4 Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 and SFI homologated compression-style racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars ZX EVO v3 Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormula 1 Specification Design:\u003c\/strong\u003e Developed for top-level motorsport performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 certified components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFI Homologation:\u003c\/strong\u003e SFI-rated components for broader sanctioning-body compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLENZING FR Material:\u003c\/strong\u003e Flame-resistant cellulosic fiber with permanent thermal insulation properties\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Management:\u003c\/strong\u003e Helps move perspiration away from the skin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacquard Mesh Construction:\u003c\/strong\u003e Diamond-pattern knit improves airflow, stretch, and fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e Helps minimize bulk underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft-Touch Fabric:\u003c\/strong\u003e Designed for extended wear during long driving sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered Stretch:\u003c\/strong\u003e Improves freedom of movement and close-body fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Sock Design:\u003c\/strong\u003e Supports the foot, ankle, and calf while helping improve circulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars ZX EVO v3 Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe ZX EVO v3 Balaclava is engineered for Formula 1-level performance with an ultra-lightweight, soft, and breathable construction. LENZING FR fibers provide permanent flame resistance and thermal insulation while moisture-wicking properties help keep the driver cool and dry.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 and SFI 3.3 certified\u003c\/li\u003e\n\u003cli\u003eFormula 1-specification flame-resistant construction\u003c\/li\u003e\n\u003cli\u003eOpen-knit mouth and rear zones for increased airflow\u003c\/li\u003e\n\u003cli\u003eDouble-layer face area for added protection\u003c\/li\u003e\n\u003cli\u003eMouth opening for hydration tube access\u003c\/li\u003e\n\u003cli\u003eFlat seams help reduce pressure points\u003c\/li\u003e\n\u003cli\u003eLightweight 205 g\/sqm construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars ZX EVO v3 Fireproof Shirt\u003c\/h2\u003e\n\u003cp\u003eThe ZX EVO v3 Shirt uses LENZING FR fabric and an all-new jacquard diamond-mesh structure to combine flame-resistant protection with exceptional breathability and stretch. Its seamless tubular torso and reduced collar seams help minimize pressure points underneath a racing suit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 and SFI 3.3 homologated\u003c\/li\u003e\n\u003cli\u003eLENZING FR flame-resistant cellulosic fiber\u003c\/li\u003e\n\u003cli\u003e255 g\/sqm lightweight construction\u003c\/li\u003e\n\u003cli\u003eJacquard diamond mesh for ventilation and flexibility\u003c\/li\u003e\n\u003cli\u003eSeamless tubular torso design\u003c\/li\u003e\n\u003cli\u003eMoisture-wicking construction\u003c\/li\u003e\n\u003cli\u003eImproved stretch fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars ZX EVO v3 Underlayer Pants\u003c\/h2\u003e\n\u003cp\u003eThe ZX EVO v3 Pants use the same advanced LENZING FR construction as the matching shirt. Their lightweight jacquard diamond-knit material provides stretch, breathability, and moisture management while maintaining FIA and SFI fire-resistant protection.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 and SFI 3.3 certified\u003c\/li\u003e\n\u003cli\u003eLENZING FR flame-resistant material\u003c\/li\u003e\n\u003cli\u003e255 g\/sqm lightweight construction\u003c\/li\u003e\n\u003cli\u003eJacquard mesh with diamond structure\u003c\/li\u003e\n\u003cli\u003eHigh breathability and moisture management\u003c\/li\u003e\n\u003cli\u003eStretch fit for improved comfort and mobility\u003c\/li\u003e\n\u003cli\u003eLow-bulk design helps reduce bunching under a racing suit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAlpinestars ZX v4 Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eThe Alpinestars ZX v4 Nomex Socks use a graduated compression design developed to support the muscles, tendons, and ligaments of the foot, ankle, and calf. This compression structure helps promote circulation while reducing fatigue during long driving sessions.\u003c\/p\u003e\n\u003cp\u003eLightweight elastane-enhanced construction improves comfort and freedom of movement, while the seamless design helps reduce pressure points. The socks extend to just below the knee for excellent lower-leg coverage.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 homologated\u003c\/li\u003e\n\u003cli\u003eSFI homologated\u003c\/li\u003e\n\u003cli\u003eGraduated compression design\u003c\/li\u003e\n\u003cli\u003eSupports circulation and helps reduce fatigue\u003c\/li\u003e\n\u003cli\u003eSeamless construction minimizes pressure points\u003c\/li\u003e\n\u003cli\u003eLightweight and soft to the touch\u003c\/li\u003e\n\u003cli\u003eBelow-knee length for increased protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eThe ZX EVO v3 shirt and pants use Alpinestars racing underlayer sizing. Select the appropriate size for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-underlayer-size_chart-image-CMS.png?v=1729712835\" alt=\"Alpinestars ZX EVO v3 racing underlayer size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eZX v4 socks use separate footwear sizing.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Alpinestars-Underlayer-Sock-Size-Chart-CMS.png?v=1729715167\" alt=\"Alpinestars ZX v4 Nomex racing sock size chart\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePremium FIA \u0026amp; SFI Racing Underlayer System\u003c\/h2\u003e\n\u003cp\u003eThe Alpinestars ZX EVO v3 bundle is designed for drivers who want a premium fire-resistant underlayer system with an emphasis on heat management, moisture control, low weight, stretch, and long-stint comfort. Combined with an approved racing suit, gloves, shoes, and helmet, it creates a complete high-performance motorsport foundation.\u003c\/p\u003e","brand":"Alpinestars","offers":[{"title":"Default Title","offer_id":50536769323227,"sku":"f373add3-794c-4449-b465-0092efd17847","price":636.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/alpinestars-zx-evo-v3-underlayer-package-hero-image.jpg?v=1790779503"},{"product_id":"sparco-rw-4-underlayer-package","title":"Sparco RW-4 Nomex Racing Underwear Bundle | FIA 8856-2018","description":"\u003ch1\u003eSparco RW-4 FIA Racing Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-rw-4-nomex-racing-underwear-bundle-image.jpg?v=1790780850\" alt=\"Sparco RW-4 Nomex racing underwear bundle with balaclava, shirt, pants and socks FIA 8856-2018 certified\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sparco RW-4 Nomex Racing Underwear Bundle combines the complete RW-4 fire-resistant underlayer system into one convenient package. It includes the Sparco RW-4 balaclava, long-sleeve shirt, pants, and Nomex racing socks for complete head-to-toe protection underneath your racing suit.\u003c\/p\u003e\n\u003cp\u003eDesigned for drivers who want dependable FIA-certified protection with a comfortable regular fit, the RW-4 collection uses a soft-touch interlock fabric that is lightweight, breathable, and comfortable enough for long track sessions. Every component in this package is FIA 8856-2018 approved.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-4 Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 approved fire-resistant head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-4 Nomex Shirt\u003c\/strong\u003e – FIA 8856-2018 approved long-sleeve racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-4 Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 approved fire-resistant racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-4 Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 approved mid-calf racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-4 Underlayer Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 approved components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Underlayer System:\u003c\/strong\u003e Includes balaclava, shirt, pants, and socks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft-Touch Interlock Fabric:\u003c\/strong\u003e Designed for excellent next-to-skin comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegular Fit:\u003c\/strong\u003e Comfortable alternative to compression-style racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Helps reduce unnecessary bulk underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathable Material:\u003c\/strong\u003e Designed for comfort during demanding track sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire-Resistant Protection:\u003c\/strong\u003e Nomex construction provides protection for competitive motorsport use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Static Socks:\u003c\/strong\u003e RW-4 socks combine fire-resistant Nomex construction with anti-static properties\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoordinated Sparco System:\u003c\/strong\u003e Matching RW-4 components designed to work together as a complete racing base layer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-4 Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-4 Nomex Balaclava provides FIA-certified fire-resistant protection while maintaining a soft, breathable feel underneath a racing helmet. The regular-fit construction is designed for long-term comfort without excessive compression.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSoft-touch interlock fabric\u003c\/li\u003e\n\u003cli\u003eRegular fit\u003c\/li\u003e\n\u003cli\u003eLightweight and breathable\u003c\/li\u003e\n\u003cli\u003eDesigned for extended use underneath a racing helmet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-4 Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-4 Nomex Shirt is a comfortable long-sleeve racing base layer made from soft-touch interlock fabric. Unlike compression-style underlayers, the RW-4 uses a regular fit that provides excellent comfort and freedom of movement underneath a racing suit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSoft and comfortable interlock construction\u003c\/li\u003e\n\u003cli\u003eRegular fit\u003c\/li\u003e\n\u003cli\u003eLong-sleeve design\u003c\/li\u003e\n\u003cli\u003eSizes Small through XX-Large\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 001782MBI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-4 Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-4 Nomex Pants provide lightweight lower-body fire protection with the same soft-touch interlock fabric used throughout the RW-4 collection. Their regular-fit design allows comfortable movement inside the cockpit while avoiding the restrictive feel of compression-style underwear.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSoft-touch interlock material\u003c\/li\u003e\n\u003cli\u003eRegular fit\u003c\/li\u003e\n\u003cli\u003eLightweight and breathable construction\u003c\/li\u003e\n\u003cli\u003eSizes Small through XX-Large\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-4 Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eSparco RW-4 Nomex Socks complete the underlayer system with lightweight fire-resistant protection for the feet and lower legs. The mid-calf socks use the same soft-touch interlock construction as the rest of the RW-4 range for excellent comfort inside racing shoes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eFire-retardant Nomex construction\u003c\/li\u003e\n\u003cli\u003eAnti-static properties\u003c\/li\u003e\n\u003cli\u003eLightweight and breathable\u003c\/li\u003e\n\u003cli\u003eSoft-touch interlock fabric\u003c\/li\u003e\n\u003cli\u003eMid-calf length\u003c\/li\u003e\n\u003cli\u003eEuropean shoe sizing\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 001516BI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Sparco RW-4 Bundle?\u003c\/h2\u003e\n\u003cp\u003eThe RW-4 collection is an excellent choice for drivers who want complete FIA 8856-2018 protection without moving into a tight compression-style underlayer. Its soft interlock fabric and regular fit make the RW-4 particularly well suited for track days, club racing, endurance events, and drivers who prioritize comfort during long periods in the car.\u003c\/p\u003e\n\u003cp\u003ePurchasing the complete package also makes it easier to build a coordinated Sparco underlayer system without selecting each component separately.\u003c\/p\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eSparco RW-4 shirts and pants use Sparco racing underwear sizing. Select the appropriate size for the shirt and pants independently when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Size_Chart-Underlayer_Sparco-CMS.png?v=1728416719\" alt=\"Sparco RW-4 Nomex racing underwear shirt and pants size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eSparco RW-4 socks are sized according to European shoe sizes. Use the chart below to convert your normal shoe size.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco-Shoe_Size_Chart_Image.png?v=1749844904\" alt=\"Sparco RW-4 Nomex racing sock shoe size chart\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the entire Sparco RW-4 bundle FIA approved?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The RW-4 balaclava, shirt, pants, and socks are all FIA 8856-2018 approved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the Sparco RW-4 a compression-fit underlayer?\u003c\/strong\u003e\u003cbr\u003eA: No. The RW-4 shirt and pants use a regular fit, making them a good choice for drivers who prefer a less restrictive feel underneath their racing suit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What comes in the RW-4 bundle?\u003c\/strong\u003e\u003cbr\u003eA: The package includes one RW-4 balaclava, one RW-4 long-sleeve shirt, one pair of RW-4 pants, and one pair of RW-4 Nomex socks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I select different sizes for the shirt and pants?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Each bundle component can be configured independently so you can select the appropriate size for each item.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How are the Sparco RW-4 socks sized?\u003c\/strong\u003e\u003cbr\u003eA: RW-4 socks use European shoe sizing. Refer to the Sparco shoe size chart above to determine the correct size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Who is the RW-4 bundle best suited for?\u003c\/strong\u003e\u003cbr\u003eA: The RW-4 is ideal for track-day drivers, club racers, and competitive drivers who want FIA-certified fire protection with a comfortable regular-fit underlayer rather than a compression-style system.\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Default Title","offer_id":50536924348635,"sku":"8bd4e433-2a6d-473e-9f87-79c740af56f4","price":436.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-rw-4-nomex-racing-underwear-bundle-image.jpg?v=1790780850"},{"product_id":"sparco-rw-7-underlayer-package","title":"Sparco RW-7 Nomex Racing Underwear Bundle | FIA 8856-2018","description":"\u003ch1\u003eSparco RW-7 Nomex Racing Underwear Bundle\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_RW-7_Nomex_Racing_Underwear_Bundle_image.jpg?v=1790781307\" alt=\"Sparco RW-7 white Nomex racing underwear bundle with balaclava, shirt, pants and socks FIA 8856-2018 certified\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sparco RW-7 Nomex Racing Underwear Bundle combines the RW-7 Delta balaclava, RW-7 shirt, RW-7 pants, and RW-7 socks into one complete fire-resistant underlayer system for competitive motorsport.\u003c\/p\u003e\n\u003cp\u003eDesigned around comfort, breathability, and protection, the RW-7 collection uses soft stretchable fibers, minimal seams, and Sparco X-Cool technology to help manage heat and moisture while reducing pressure points underneath your helmet and racing suit.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-7 Delta Balaclava\u003c\/strong\u003e – FIA 8856-2018 and SFI 3.3 approved fire-resistant head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-7 Nomex Shirt\u003c\/strong\u003e – FIA 8856-2018 approved long-sleeve racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-7 Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 approved fire-resistant racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-7 Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 approved mid-calf racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-7 Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Certification:\u003c\/strong\u003e FIA 8856-2018 approved components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFI Certification:\u003c\/strong\u003e RW-7 Delta balaclava is SFI 3.3 approved\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eX-Cool Technology:\u003c\/strong\u003e Helps draw heat away from the body surface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibacterial Treatment:\u003c\/strong\u003e Helps reduce odor and bacterial buildup during extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft Stretchable Fabric:\u003c\/strong\u003e Provides a close, comfortable racing fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal External Seams:\u003c\/strong\u003e Helps reduce pressure points beneath racing gear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver-Focused Construction:\u003c\/strong\u003e Designed for comfort while seated in the cockpit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Management:\u003c\/strong\u003e Helps control sweat and heat during demanding driving sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Underlayer System:\u003c\/strong\u003e Includes balaclava, shirt, pants, and socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-7 Delta Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-7 Delta Balaclava combines FIA 8856-2018 and SFI 3.3 fire protection with a lightweight, moisture-wicking construction designed for long sessions behind the wheel.\u003c\/p\u003e\n\u003cp\u003eA body-mapped knit structure provides differentiated support between the front and rear of the balaclava, while optimized stitching around the eye opening helps minimize pressure points beneath a close-fitting racing helmet.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSFI 3.3 approved\u003c\/li\u003e\n\u003cli\u003eBreathable moisture-wicking construction\u003c\/li\u003e\n\u003cli\u003eBody-mapped knit structure\u003c\/li\u003e\n\u003cli\u003eOptimized eye-opening stitching\u003c\/li\u003e\n\u003cli\u003eThin profile for comfortable helmet fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-7 Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-7 Nomex Shirt uses a soft stretchable construction with seamless sides and raglan sleeves to improve mobility and comfort underneath a racing suit. The fabric is designed to fit close to the body while remaining flexible in the driving position.\u003c\/p\u003e\n\u003cp\u003eSparco X-Cool treatment helps draw heat away from the skin and provides an antibacterial effect for improved comfort during long track sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSoft stretchable Nomex construction\u003c\/li\u003e\n\u003cli\u003eSeamless sides\u003c\/li\u003e\n\u003cli\u003eRaglan sleeves for improved movement\u003c\/li\u003e\n\u003cli\u003eMinimal external seams\u003c\/li\u003e\n\u003cli\u003eSparco X-Cool treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-7 Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-7 Nomex Pants provide lightweight fire-resistant lower-body protection with a close-fitting stretch construction designed specifically for motorsport use.\u003c\/p\u003e\n\u003cp\u003eX-Cool technology helps regulate temperature, while reinforced areas and minimal seams provide a balance of comfort, protection, and durability during demanding driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSoft stretchable Nomex construction\u003c\/li\u003e\n\u003cli\u003eDesigned for comfort in the driving position\u003c\/li\u003e\n\u003cli\u003eMinimal external seams\u003c\/li\u003e\n\u003cli\u003eX-Cool temperature-management technology\u003c\/li\u003e\n\u003cli\u003eAntibacterial treatment\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 001781P\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-7 Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eSparco RW-7 Nomex Socks complete the underlayer system with lightweight fire-resistant protection for the feet and lower legs. Their soft construction and X-Cool treatment help improve comfort while maintaining a close fit inside racing shoes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSoft and stretchable Nomex construction\u003c\/li\u003e\n\u003cli\u003eMinimal external seams\u003c\/li\u003e\n\u003cli\u003eX-Cool treatment\u003c\/li\u003e\n\u003cli\u003eAntibacterial properties\u003c\/li\u003e\n\u003cli\u003eAvailable in black or white\u003c\/li\u003e\n\u003cli\u003eEuropean shoe sizing\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 001522\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eSparco RW-7 shirts and pants use Sparco underlayer sizing. The soft stretchable fabric is designed to fit close to the body. Drivers who prefer a looser fit may want to select one size larger.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Size_Chart-Underlayer_Sparco-CMS.png?v=1728416719\" alt=\"Sparco RW-7 Nomex racing underwear shirt and pants size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eSparco RW-7 socks are sized according to European shoe sizes.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-socks-sizing-guide.jpg?v=1750113939\" alt=\"Sparco RW-7 Nomex racing sock size chart\"\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the Sparco RW-7 Bundle?\u003c\/h2\u003e\n\u003cp\u003eThe RW-7 system is a strong choice for drivers who want FIA-certified protection with more technical heat-management features than a basic entry-level underlayer. The combination of X-Cool treatment, stretch construction, moisture management, and minimal seams makes the RW-7 especially well suited for long track sessions, endurance racing, and hot cockpit conditions.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the Sparco RW-7 bundle FIA approved?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The RW-7 balaclava, shirt, pants, and socks are FIA 8856-2018 approved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the RW-7 balaclava SFI approved?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Sparco RW-7 Delta Balaclava is also SFI 3.3 approved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does Sparco X-Cool do?\u003c\/strong\u003e\u003cbr\u003eA: X-Cool treatment is designed to help draw heat away from the body surface while also providing an antibacterial effect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the RW-7 a compression fit?\u003c\/strong\u003e\u003cbr\u003eA: The shirt and pants are designed to fit close to the body because of their soft stretchable fabric. If you prefer a looser fit, consider selecting one size larger.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I select different sizes for each part of the bundle?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Shirt, pants, balaclava, and sock options can be selected independently when configuring the package.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How are the RW-7 socks sized?\u003c\/strong\u003e\u003cbr\u003eA: Sparco RW-7 socks use European shoe sizing. Refer to the Sparco sock size chart above to find the correct size.\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Default Title","offer_id":50536949481691,"sku":"43c583ee-83dc-41d2-ae03-7ec9ece06f06","price":558.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_RW-7_Nomex_Racing_Underwear_Bundle_image.jpg?v=1790781307"},{"product_id":"sparco-rw-9-underlayer-package","title":"Sparco Shield RW-9 Nomex Racing Underwear Bundle | FIA \u0026 SFI","description":"\u003ch1\u003eComplete Sparco Shield RW-9 Racing Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Untitled_10sparco-shield-rw-9-nomex-racing-underwear-bundle-image.jpg?v=1790719126\" alt=\"Sparco Shield RW-9 Nomex racing underwear bundle with balaclava, shirt, pants and RW-7 socks\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sparco Shield RW-9 Nomex Racing Underwear Bundle combines premium Sparco fire-resistant underlayers into one complete driver package. This bundle includes the Shield RW-9 balaclava, Shield RW-9 shirt, Shield RW-9 pants, and Sparco RW-7 Nomex socks for head-to-toe racing protection.\u003c\/p\u003e\n\u003cp\u003eThe Shield RW-9 collection is engineered around breathability, comfort, and driver movement. Sparco uses ultra-soft stretchable Nomex, perforated knit zones, minimal flat seams, and X-Cool Silver technology to create an underlayer system designed for demanding cockpit conditions.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco Shield RW-9 Nomex Balaclava\u003c\/strong\u003e – SFI 3.3-rated fire-resistant head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco Shield RW-9 Nomex Shirt\u003c\/strong\u003e – FIA 8856-2000 and SFI 3.3 homologated racing underlayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco Shield RW-9 Nomex Pants\u003c\/strong\u003e – FIA 8856-2000 and SFI 3.3 rated racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-7 Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 approved fire-resistant racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco Shield RW-9 Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Nomex Construction:\u003c\/strong\u003e Designed for high-level motorsport protection and comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Stretch Zones:\u003c\/strong\u003e Improve mobility and reduce unnecessary pressure points\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerforated Knit Areas:\u003c\/strong\u003e Increase airflow in key heat zones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal Flat Seams:\u003c\/strong\u003e Specialized stitching helps improve comfort beneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eX-Cool Silver Technology:\u003c\/strong\u003e Helps draw heat away from the skin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibacterial Treatment:\u003c\/strong\u003e X-Cool Silver helps control odor during extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver-Focused Fit:\u003c\/strong\u003e Designed specifically around the seated driving position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Color Options:\u003c\/strong\u003e Black and white options available depending on component and inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco Shield RW-9 Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Shield RW-9 Balaclava combines stretchable Nomex with strategically placed breathable knit sections to provide lightweight protection underneath a racing helmet. Minimal external seams and soft construction help reduce pressure points during long driving sessions.\u003c\/p\u003e\n\u003cp\u003eThe balaclava is SFI 3.3 rated and treated with Sparco X-Cool Silver technology to help improve heat management and comfort.\u003c\/p\u003e\n\u003ch2\u003eSparco Shield RW-9 Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Shield RW-9 Shirt uses two different woven materials in key areas: thin stretch Nomex for mobility and double-perforated Nomex for improved breathability. The design follows the driver's seated position to provide a close, comfortable fit underneath a racing suit.\u003c\/p\u003e\n\u003cp\u003eX-Cool Silver treatment helps draw heat away from the skin while also providing an antibacterial effect.\u003c\/p\u003e\n\u003ch2\u003eSparco Shield RW-9 Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe Shield RW-9 Pants use the same stretchable and perforated Nomex construction as the matching shirt. Minimal flat seams help reduce irritation while the ergonomic fit promotes comfort and mobility inside the cockpit.\u003c\/p\u003e\n\u003cp\u003eThe pants are available in grouped sizes from XS-S through XXXL and in black or white depending on inventory.\u003c\/p\u003e\n\u003ch2\u003eSparco RW-7 Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-7 Nomex Socks complete the bundle with lightweight FIA 8856-2018 approved protection for the feet and lower legs. Their soft fiber blend and X-Cool treatment help improve comfort while maintaining a low-bulk fit inside racing shoes.\u003c\/p\u003e\n\u003ch2\u003eSizing\u003c\/h2\u003e\n\u003cp\u003eThe Shield RW-9 shirt and pants use Sparco underlayer sizing. Select the appropriate size and color for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-underlayers-sizing-chart.jpg?v=1750099428\" alt=\"Sparco Shield RW-9 Nomex racing underwear size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eSparco RW-7 socks are sized according to European shoe sizes.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-socks-sizing-guide.jpg?v=1750113939\" alt=\"Sparco RW-7 Nomex racing sock size chart\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSparco X-Cool Racing Underwear System\u003c\/h2\u003e\n\u003cp\u003eThe Sparco Shield RW-9 system is built for drivers who want a premium underlayer package focused on breathability, heat management, mobility, and comfort. Pair it with an approved racing suit, gloves, shoes, and helmet for a complete motorsport safety setup.\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Default Title","offer_id":50536955576539,"sku":"29ca3427-03b4-4228-896c-b55b49cda256","price":542.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Untitled_10sparco-shield-rw-9-nomex-racing-underwear-bundle-image.jpg?v=1790719126"},{"product_id":"sparco-rw-10-underlayer-package","title":"Sparco RW-10 Nomex Racing Underwear Bundle","description":"\u003ch1\u003eComplete Sparco RW FIA Racing Underwear Package\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-rw-10-underlayer-bundle-image.jpg?v=1790779817\" alt=\"Sparco RW-10 racing underlayer bundle with balaclava, shirt, pants and Nomex socks FIA 8856-2018 certified\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sparco RW-10 \/ RW-11 Seamless Nomex Racing Underwear Bundle combines four premium Sparco underlayer components into one complete FIA 8856-2018 certified racing underwear system. The package includes the RW-10 seamless balaclava, RW-11 seamless shirt, RW-11 seamless pants, and RW-10 compression socks.\u003c\/p\u003e\n\u003cp\u003eDeveloped around the driver's seating position, Sparco's RW underlayers focus on lightweight construction, breathability, stretch, and reduced pressure points. The RW-11 shirt and pants also incorporate Sparco X-Cool technology to help draw heat away from the body while providing an antibacterial effect.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-10 Seamless Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 certified head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-11 Seamless Nomex Shirt\u003c\/strong\u003e – FIA 8856-2018 certified compression-style racing base layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-11 Seamless Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 certified seamless racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-10 Compression Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 certified graduated compression racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 certified components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Construction:\u003c\/strong\u003e Designed to minimize pressure points and improve comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Soft Stretch Material:\u003c\/strong\u003e Provides mobility and a close racing fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver-Focused Design:\u003c\/strong\u003e Engineered around the seated driving position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eX-Cool Technology:\u003c\/strong\u003e RW-11 shirt and pants help draw heat away from the body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibacterial Treatment:\u003c\/strong\u003e X-Cool technology helps control odor during extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Fit:\u003c\/strong\u003e RW-11 garments provide a close, supportive fit underneath a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Socks:\u003c\/strong\u003e RW-10 socks use graduated Class 1 compression to support the lower legs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Colors:\u003c\/strong\u003e Black or white depending on component and inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-10 Seamless Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-10 Balaclava is designed to reduce pressure points underneath a racing helmet. Its seamless construction eliminates the traditional center seam across the forehead and avoids seams around the mouth and chin area for improved comfort.\u003c\/p\u003e\n\u003cp\u003eThe stretchable Nomex construction provides excellent mobility while maintaining FIA 8856-2018 fire-resistant protection.\u003c\/p\u003e\n\u003ch2\u003eSparco RW-11 Seamless Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-11 Shirt combines a seamless construction with ultra-soft stretch material and a compression-style fit. The garment is engineered to sit smoothly underneath a racing suit while reducing excess material and irritation.\u003c\/p\u003e\n\u003cp\u003eSparco's X-Cool Silver treatment helps draw heat away from the body's surface and provides an antibacterial effect to improve comfort during demanding driving sessions.\u003c\/p\u003e\n\u003ch2\u003eSparco RW-11 Seamless Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe RW-11 Pants use the same seamless, stretchable construction and X-Cool treatment as the matching shirt. Their compression-style fit helps reduce bunching underneath a racing suit while allowing the driver to move naturally in the cockpit.\u003c\/p\u003e\n\u003cp\u003eDrivers who prefer a looser fit may want to select one size larger than their normal underlayer size.\u003c\/p\u003e\n\u003ch2\u003eSparco RW-10 Compression Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-10 Compression Socks use a unique helical construction that provides graduated Class 1 compression. Maximum pressure is applied around the ankle and gradually decreases toward the calf to support blood circulation during extended driving sessions.\u003c\/p\u003e\n\u003cp\u003eThis compression design is intended to help reduce muscle fatigue, improve comfort, and maintain driver focus while still providing FIA 8856-2018 fire-resistant protection.\u003c\/p\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eThe RW-11 shirt and pants use Sparco racing underwear sizing. Select the appropriate size and color for each garment when configuring your bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Size_Chart-Underlayer_Sparco-CMS.png?v=1728416719\" alt=\"Sparco RW-11 Nomex racing underwear size chart\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe RW-11 shirt has a compression-style fit. If you prefer a more relaxed fit, consider selecting one size larger than your normal size.\u003c\/p\u003e\n\u003ch2\u003eFIA 8856-2018 Racing Underwear\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW system is designed for drivers looking for premium FIA-certified fire-resistant underwear with an emphasis on lightweight construction, minimal seams, cooling technology, and driver comfort. Combined with an approved racing suit, helmet, gloves, and shoes, this bundle provides a complete professional racing underlayer setup.\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Default Title","offer_id":50536958558427,"sku":"2415010c-8d82-4d6a-9060-76411786c36e","price":742.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/sparco-rw-10-underlayer-bundle-image.jpg?v=1790779817"},{"product_id":"sparco-rw-11-underlayer-package","title":"Sparco RW-11 Seamless Nomex Underwear Bundle | FIA 8856-2018","description":"\u003ch1\u003eSparco RW-11 Seamless Racing Underlayer Bundle \u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_RW-11_Seamless_Nomex_Underwear_Bundle_image.jpg?v=1790782434\" alt=\"Sparco RW-11 seamless Nomex underlayer bundle with RW-10 balaclava, RW-11 shirt, RW-11 pants, and RW-10 compression socks in black.\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Sparco RW-11 Seamless Nomex Racing Underwear Bundle combines Sparco's premium seamless underlayers into one complete FIA 8856-2018 approved driver package. This bundle includes the RW-10 seamless balaclava, RW-11 seamless shirt, RW-11 seamless pants, and RW-10 compression Nomex socks.\u003c\/p\u003e\n\u003cp\u003eDesigned around the driver's seated position, the RW-11 system focuses on lightweight construction, exceptional breathability, minimal pressure points, and a close compression-style fit. Sparco X-Cool Silver treatment in the shirt and pants helps draw heat away from the body while providing an antibacterial effect for improved comfort during long track sessions.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-10 Seamless Nomex Balaclava\u003c\/strong\u003e – FIA 8856-2018 approved head and neck protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-11 Seamless Nomex Shirt\u003c\/strong\u003e – FIA 8856-2018 approved compression-style racing base layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-11 Seamless Nomex Pants\u003c\/strong\u003e – FIA 8856-2018 approved seamless racing underwear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x Sparco RW-10 Compression Nomex Socks\u003c\/strong\u003e – FIA 8856-2018 approved Class 1 graduated compression racing socks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-11 Bundle Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFIA Homologation:\u003c\/strong\u003e FIA 8856-2018 approved components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Construction:\u003c\/strong\u003e Helps minimize rubbing, seams, and pressure points beneath racing gear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Fit:\u003c\/strong\u003e RW-11 shirt and pants provide a close, performance-oriented fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Soft Stretch Material:\u003c\/strong\u003e Allows excellent mobility while maintaining a smooth fit under a racing suit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eX-Cool Silver Technology:\u003c\/strong\u003e Helps draw heat away from the body surface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibacterial Treatment:\u003c\/strong\u003e Helps control odor and bacterial buildup during extended use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver-Focused Design:\u003c\/strong\u003e Engineered around the seated driving position for improved comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Socks:\u003c\/strong\u003e Graduated Class 1 compression helps support circulation and reduce fatigue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Options:\u003c\/strong\u003e Black and white options available depending on component and inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-10 Seamless Nomex Balaclava\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-10 Balaclava is designed to provide lightweight FIA-certified protection while reducing common pressure points underneath a racing helmet. Its seamless construction eliminates seams across the mouth and chin, while the traditional center seam across the forehead has also been removed.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eSeamless stretchable Nomex construction\u003c\/li\u003e\n\u003cli\u003eMinimal external seams\u003c\/li\u003e\n\u003cli\u003eDesigned for comfort in the driving position\u003c\/li\u003e\n\u003cli\u003eReduced pressure points underneath a helmet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-11 Seamless Nomex Shirt\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-11 Shirt combines a fully seamless structure with ultra-soft stretchable material for a close, comfortable fit beneath a racing suit. Its compression-style construction minimizes excess material while maintaining excellent freedom of movement.\u003c\/p\u003e\n\u003cp\u003eSparco X-Cool Silver treatment helps draw heat away from the driver's body while providing an antibacterial effect for improved comfort and freshness during long sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eFully seamless construction\u003c\/li\u003e\n\u003cli\u003eCompression-style fit\u003c\/li\u003e\n\u003cli\u003eUltra-soft stretchable Nomex\u003c\/li\u003e\n\u003cli\u003eX-Cool Silver heat-management treatment\u003c\/li\u003e\n\u003cli\u003eAntibacterial properties\u003c\/li\u003e\n\u003cli\u003eMinimal external seams\u003c\/li\u003e\n\u003cli\u003eAvailable in black or white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-11 Seamless Nomex Pants\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-11 Pants use the same seamless, stretchable construction and X-Cool Silver treatment as the matching shirt. Their close compression fit helps reduce bunching and excess material underneath a racing suit while maintaining excellent mobility in the cockpit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eFully seamless construction\u003c\/li\u003e\n\u003cli\u003eCompression-style fit\u003c\/li\u003e\n\u003cli\u003eStretchable Nomex material\u003c\/li\u003e\n\u003cli\u003eX-Cool Silver technology\u003c\/li\u003e\n\u003cli\u003eAntibacterial treatment\u003c\/li\u003e\n\u003cli\u003eMinimal external seams\u003c\/li\u003e\n\u003cli\u003eAvailable in black or white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSparco RW-10 Compression Nomex Socks\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-10 Compression Socks use a unique helical structure that provides graduated Class 1 compression. Maximum pressure is applied around the ankle and gradually decreases toward the calf to help support the upward return of blood circulation.\u003c\/p\u003e\n\u003cp\u003eThis graduated compression design is intended to help reduce muscle fatigue, improve comfort, and support driver focus during long racing sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFIA 8856-2018 approved\u003c\/li\u003e\n\u003cli\u003eGraduated Class 1 compression\u003c\/li\u003e\n\u003cli\u003eHelical compression structure\u003c\/li\u003e\n\u003cli\u003eMaximum pressure at the ankle with decreasing pressure toward the calf\u003c\/li\u003e\n\u003cli\u003eDesigned to support circulation\u003c\/li\u003e\n\u003cli\u003eHelps reduce muscle fatigue\u003c\/li\u003e\n\u003cli\u003eSeamless stretchable Nomex construction\u003c\/li\u003e\n\u003cli\u003eAvailable in black or white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSizing Chart\u003c\/h2\u003e\n\u003cp\u003eThe RW-11 shirt and pants use Sparco racing underlayer sizing. Because these garments are designed with a compression-style fit, drivers who prefer a looser fit should consider selecting one size larger than normal.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Size_Chart-Underlayer_Sparco-CMS.png?v=1728416719\" alt=\"Sparco RW-11 seamless Nomex racing underwear size chart\"\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the Sparco RW-11 Bundle?\u003c\/h2\u003e\n\u003cp\u003eThe Sparco RW-11 system is designed for drivers who want premium FIA-certified protection with minimal bulk, advanced cooling technology, and a close performance fit. The combination of seamless construction, X-Cool Silver treatment, and RW-10 graduated compression socks makes this package especially well suited for endurance racing, competitive motorsport, and drivers who spend extended periods in the car.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the Sparco RW-11 bundle FIA approved?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The RW-10 balaclava and compression socks along with the RW-11 shirt and pants are FIA 8856-2018 approved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the RW-11 a compression-fit underlayer?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The RW-11 shirt and pants are designed with a close compression-style fit. If you prefer a looser fit, consider selecting one size larger.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does Sparco X-Cool Silver do?\u003c\/strong\u003e\u003cbr\u003eA: X-Cool Silver is designed to help draw heat away from the body surface while also providing an antibacterial effect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is special about the RW-10 compression socks?\u003c\/strong\u003e\u003cbr\u003eA: The RW-10 socks use graduated Class 1 compression, applying greater pressure near the ankle and gradually reducing pressure toward the calf to support circulation and help reduce fatigue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I select different sizes for the shirt and pants?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Each component can be configured independently so you can select the appropriate size for each part of the bundle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are black and white options available?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Black and white options are available for multiple RW-10 and RW-11 components depending on current inventory.\u003c\/p\u003e","brand":"Sparco S.p.A.","offers":[{"title":"Default Title","offer_id":50537003286747,"sku":"ad38c926-dbff-477a-8591-bde52e5373e2","price":778.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/9242\/8763\/files\/Sparco_RW-11_Seamless_Nomex_Underwear_Bundle_image.jpg?v=1790782434"}],"url":"https:\/\/competitionmotorsport.com\/collections\/nomex-socks.oembed?page=2","provider":"Competition Motorsport","version":"1.0","type":"link"}