Simpson CarbonX Underwear Bottom - Black BR2002 All with white stripes across

All with white stripes across the chest and down the arms & legs

Knit stretch panels on sides add flexibility

Three Layers of Lightweight Aramid and FRC Blended Fabric is Hypoallergenic - Won't Irritate Skin

The 360-degree

Simpson CarbonX Underwear Bottom - Black BR2002 All with white stripes acrossCarbonX 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.