Nomex Underwear Small SFI

The Nomex Underwear Small SFI by RJS SAFETY represents essential thermal protection for high-performance drivers, mechanics, and automotive enthusiasts who work in or around high-heat environments. Whether you're a serious track driver, racing enthusiast, or automotive professional conducting welding or engine work, fire-resistant base layers are non-negotiable safety gear. This garment exists to provide a critical barrier between your skin and extreme temperatures, meeting SFI Foundation safety standards that govern racing and motorsport applications.

Nomex is a flame-resistant aramid fiber engineered to resist ignition and char rather than melt when exposed to heat or flames, making it fundamentally different from standard cotton or synthetic underwear. The small size (7 x 6.5 x 13.3 inches, weighing 1.07 lbs) is designed for a snug, form-fitting fit that maximizes thermal contact without excess fabric that could bunch or create hot spots. RJS SAFETY's SFI certification means this product meets rigorous fire-protection testing protocols, ensuring the material maintains integrity under sustained heat exposure and provides the thermal insulation properties drivers and mechanics depend on during emergencies or routine high-heat work.

This product is ideal for road-course drivers, drag racers, and autocross competitors who spend extended periods in closed cockpits or wear racing suits for extended sessions. Mechanics working on high-performance engine builds, turbo installations, or exhaust work also benefit from the thermal protection Nomex provides. The small size fits drivers of lighter builds or those preferring a closer fit under driving suits; pair this with an SFI-rated racing suit jacket and pants for complete fire protection that meets sanctioning body requirements across major racing organizations.