Simpson CarbonX Short Sleeve Crew Neck Shirt - Black Size:Medium this low profile design makes

this low profile design makes egress in and out of the car in an emergency easier

•40% lighter than previous offering

Designed to be worn under most helmetsSimpson Racing SFI Nomex Balaclava

Fire retardant lining for improved safety and comfort

No cost recertifications will only be honored on devices that are 4 years older than the manufacturing or recertification date on the SFI label on the device

Simpson CarbonX Short Sleeve Crew Neck Shirt - Black Size:Medium this low profile design makesCarbonX 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,