Simpson Racing

Simpson Racing CarbonX® Ultimate™ Underwear

Small - Black


Part # 20601S Be the first to write a review

Simpson Racing CarbonX® Ultimate™ Underwear

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CarbonX 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.


  • SFI 3.3 approved, includes SFI tag
  • Designed to deliver the ultimate in base layer thermal protection
  • TPP rating of 13 cal/cm2 and zero seconds after flame
  • Lightweight, patented blend of high-performance fibers
  • Double jersey interlock knit
  • Made in the USA

About Simpson Racing

Racing and riding is more than what you do, it's a part of who you are. We get it, because it's who we are too. Since 1959, racers and motorcycle riders have trusted Simpson Racing products to provide an unparalleled level of comfort, performance, and protection.

Brand Simpson Racing
Certification RatingSFI 3.3 Rated
Emission Code6
Product TypeFire Retardent Underwear Pants
QuantitySold individually
Manufacturer Part Number20601S
Part Number20601S
Short sleeve crew neck top is not SFI certified.

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