Simpson Racing CarbonX® SFI 3.3 Socks

Simpson Racing CarbonX® SFI 3.3 Socks

The CarbonX® SFI 3.3 Socks are knitted from patented CarbonX® yarn and flame-resistant, super-washed merino wool. Reinforced toe and heel, cushioned sole. NOTES:

  • CarbonX® is black in its pure form and cannot be dyed any other color
  • One size fits most


60 years of safety

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, NASCAR, racing enthusiasts and motorcycle riders have trusted Simpson Performance helmets, head and neck restraints, harnesses, racing suits, gloves, shoes, off-road seats, window nets, drag parachutes and more to provide an unparalleled level of comfort, performance and protection.