Simpson Racing 20101Z Soft Knit Nomex Underwear Bottoms - Size XXL

The Simpson Racing 20101Z Soft Knit Nomex Bottoms are full-length fire-resistant underwear pants designed to be worn beneath a racing suit. Built with Simpson's softest Nomex® knit fabric, these bottoms deliver all-day comfort on race days without sacrificing critical fire protection.

Wearing Nomex® underwear beneath a racing suit significantly improves Thermal Protection Performance (TPP), providing an essential additional layer of defense in the event of a fire-related accident. These bottoms are a foundational piece of any serious racer's safety system and are compatible with CarbonX® outer layers as well.

Key Features:

• SFI 3.3 Approved — meets recognized racing safety standards for fire-resistant undergarments
• Nomex® Soft Knit Construction — Simpson's softest Nomex® fabric for superior comfort and fire retardancy
• Full-Length Bottom — complete leg coverage for maximum lower-body thermal protection
• Improves TPP — dramatically increases Thermal Protection Performance when layered under a racing suit
• Compatible with CarbonX® — pairs seamlessly with CarbonX® fire-resistant outer layers
• Size: XXL (XX-Large)

Simpson Racing has been a trusted name in motorsports safety since 1959. These Nomex® underwear bottoms are an essential component for circle track, drag racing, road course, and off-road competitors who demand certified fire protection without sacrificing comfort during long stints behind the wheel.