X-Large knit Bottom

The X-Large knit bottom from CROW SAFETY GEAR (model 29107B) is a specialized fire-retardant underwear bottom engineered for motorsports professionals, race drivers, and automotive technicians who require SFI 3.3 certification. This garment serves as a critical base layer that provides passive fire protection in high-heat environments where exposure to ignition sources is a genuine occupational hazard. Whether worn under racing suits, pit crew uniforms, or during welding and fabrication work, this undergarment acts as a thermal barrier designed to reduce burn injury risk during emergency situations.

Constructed from fire-retardant cotton, the X-Large knit bottom delivers both comfort and compliance with SFI 3.3 standards, which govern thermal protective performance in motorsport applications. The knit construction provides breathability and flexibility during extended wear, while the cotton fiber base resists ignition and limits flame propagation when exposed to direct heat or open flame. The black colorway conceals stains and wear while maintaining a professional appearance suitable for competitive and professional racing environments. The garment's X-Large sizing ensures proper fit and coverage, with total weight of 1 lb reflecting the lightweight nature of the protective fabric without bulk or restriction.

Race teams, professional drivers, and safety-conscious technicians rely on this X-Large knit bottom as part of a complete SFI-compliant fire-protection ensemble. It pairs seamlessly with CROW SAFETY GEAR racing suits and tops to create a unified thermal barrier system. This undergarment is ideal for anyone competing in sanctioned motorsports events, conducting high-temperature fabrication work, or operating in environments where fire safety certification is mandatory or strongly recommended by safety protocols.