Simpson CarbonX Underwear Bottom - Black Size:Large Comfortable and loaded with features

Comfortable and loaded with features

One hand modular function

flame resistance & thermal insulation to combat heat stress and fatigue

the KC7 is designed to minimize helmet weight for karting drivers under the age of 18 and perfect for the next generation of champions as they start their racing career in karting

and a belt line for a unique look and style

Simpson CarbonX Underwear Bottom - Black Size:Large Comfortable and loaded with featuresCarbonX and and 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. Nomexandand or CarbonXand andUnderwear underneath a racing suit will dramatically improve Thermal Protection Performance (TPP) in the case of an accident involving fire.