Underwear Top SPORT-TX Black Medium SFI 3.3

The BELL Underwear Top SPORT-TX Black Medium SFI 3.3 is a professional-grade fire-retardant base layer designed specifically for high-performance driving environments. It is ideal for motorsports competitors, track day drivers, and automotive enthusiasts who require reliable thermal protection. This long-sleeve crew neck garment serves as a critical foundation layer beneath a racing suit or nomex oversuit.

Constructed from a fire-retardant blend fabric, this underwear top provides a consistent thermal barrier without sacrificing breathability during intense driving sessions. The long-sleeve design and crew neck configuration maximize coverage and work effectively with racing suits to create a complete protective system. Weighing just 0.6 lbs, it is lightweight enough to minimize bulk under competition gear while maintaining the durability needed for repeated high-heat exposure.

Anyone participating in sanctioned motorsports, including drag racing, road course competition, or circuit racing, will find this SFI 3.3-certified base layer essential for safety. The Medium size is designed to fit standard adult frame dimensions, ensuring comfort and functionality during use. This product is a vital component for those serious about their racing performance and safety.