Underwear Bottom SPORT- TX White 2X SFI 3.3

The Underwear Bottom SPORT-TX in white, size 2X, is a fire-retardant racing undergarment designed for drivers and crew members operating in high-heat environments. This base layer is engineered to provide thermal protection during motorsport competition and high-performance driving scenarios where fire-resistant clothing is essential.

Constructed to meet the SFI 3.3 specification, this garment is made from a fire-retardant blend fabric that resists ignition and limits heat transfer during exposure to flames. The lightweight design ensures comfort and mobility, making it suitable for extended wear under racing suits without adding bulk.

Ideal for professional road racing, off-road racing, drag racing, and other sanctioned motorsport competitions, this underwear bottom is a critical component for teams, drivers, and pit crew members preparing for track events. The 2X sizing accommodates larger frames while maintaining the fitted profile necessary for effective layering.