Underwear Top Black Medium

The PXP RACEWEAR Underwear Top Black Medium (SKU: PXP113) is a professional-grade fire-resistant base layer engineered for drivers who demand safety without compromise. Built to SFI 3.3 certification standards, this long-sleeve undershirt serves as a critical thermal barrier in high-performance racing, autocross, and track environments where engine heat, fuel spills, and potential ignition sources pose real risks. Whether you're running a dedicated race car, competing in time trials, or preparing for serious track days, this base layer provides the foundational fire protection that separates casual driving from serious motorsport readiness.

Constructed from a premium Kermel and Lenzing FR fiber blend, this underwear top delivers inherent flame resistance without relying on chemical treatments that degrade over wash cycles. The high-collar design and long-sleeve coverage maximize protected skin surface area, while the moisture-wicking properties of the fabric keep you dry and comfortable during extended driving sessions. SFI 3.3 rating means this garment meets stringent flammability standards tested by sanctioning bodies like NHRA, SCCA, and NASA—ensuring consistent thermal protection whether you're at the dragstrip, road course, or weekend bracket racing. The medium sizing (0.57 lbs, compact 9.8 x 1.55 x 12.1 inches when packaged) allows unrestricted movement in tight cockpits and under racing suits.

This base layer is essential for any driver operating in a sanctioned racing environment—from bracket racers and circle-track competitors to road-course drivers and automotive enthusiasts preparing for professional-level track events. Mechanics and fabricators working near heat sources, welding operations, or fuel systems also benefit from SFI-rated protection. Layer this underwear top under your racing suit for maximum thermal defense, or wear alone during shop work where fire risk exists. Compatible with all standard racing suits and harness configurations, this garment is a one-time purchase that delivers years of reliable protection when properly maintained according to SFI care guidelines.