Simpson CarbonX Short Sleeve Crew Neck Shirt - Black Size:2X-Large Designed to deliver the ultimate

Designed to deliver the ultimate in base layer thermal protection

DOT/ECE Approved

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Collars that are contoured for your specific application

Since it's hypoallergenic

Simpson CarbonX Short Sleeve Crew Neck Shirt - Black Size:2X-Large Designed to deliver the ultimateCarbonX Ultimate underwear is made from double jersey interlock knit comprised of a patented blend of high performance fibers and has extraordinary thermal protective properties. It is inherently flame resistant, will not burn, melt, or ignite when subjected to direct flame. Nomex or CarbonX Underwear underneath a racing suit will dramatically improve Thermal Protection Performance (TPP) in the case of an accident involving fire. SFI 3. 3 approved,