Undershirt Precision Black X-Large

The Undershirt Precision Black X-Large from K1 RACEGEAR is a high-performance short-sleeve undershirt engineered for drivers, racers, and tactical professionals who require superior heat protection and comfort. Built with a high collar design, this undershirt serves as a critical base layer beneath fire-resistant racing suits, flight suits, or tactical gear. Its flame-resistant construction makes it an essential safety component for anyone operating in high-temperature or fire-risk environments where standard cotton underwear poses unacceptable risk.

Manufactured from Nomex material, the Undershirt Precision Black X-Large provides inherent flame resistance without chemical treatments, ensuring durability through repeated wear and washing. Nomex fibers naturally resist combustion and char rather than melt, creating a protective barrier between the wearer's skin and external heat sources. The short-sleeve configuration with high collar design maximizes neck and shoulder coverage while maintaining mobility, and the black colorway resists staining and discoloration common in professional motorsports and tactical environments. The precision construction ensures a fitted profile that eliminates excess fabric bunching under outer garments.

This X-Large sizing is ideal for drivers, crew chiefs, aviators, and tactical operators who depend on consistent, reliable base-layer protection during extended wear. The Nomex construction meets rigorous safety standards for motorsports competition, military flight operations, and professional racing environments. Lightweight at 0.53 lbs, the undershirt minimizes heat retention while maximizing comfort during hours-long operations. For optimal protection, wear the Undershirt Precision Black X-Large as a direct skin layer beneath any fire-resistant outer suit or tactical ensemble.