Race Bottom V3 X-Large White FIA

The Alpinestars Race Bottom V3 X-Large White FIA is a purpose-built racing undergarment engineered to meet the highest fire-safety standards in motorsport competition. Constructed with Lenzing FR (flame-resistant) fiber, this FIA-approved base layer provides critical thermal and fire protection during high-performance driving applications where exposure to fuel, hydraulic fluid ignition sources, or engine heat represents a genuine occupational hazard. The V3 generation represents Alpinestars' latest advancement in comfort and protection integration for professional racing environments.

Lenzing FR technology delivers inherent flame resistance at the fiber level—meaning the protection cannot wash out or degrade through repeated use and laundering, unlike topical flame-retardant coatings. The white colorway aids heat management by reflecting radiant energy, a practical advantage during extended track sessions or endurance racing where core temperature control directly impacts driver performance and endurance. At 0.86 lbs and packaged in a compact 6 x 3 x 8-inch format, the garment weighs minimally compared to traditional cotton or synthetic base layers while delivering superior thermal barrier properties. FIA homologation certifies compliance with international racing safety regulations, a credential required or strongly preferred at sanctioned competitive events.

This bottom is specified for professional motorsport competitors, amateur racing drivers, and serious trackday participants who prioritize fire-safety certification. The X-Large sizing accommodates layering under racing suits while maintaining comfort during prolonged driving exposure. Alpinestars racing underwear is worn by drivers across formula racing, sports car competition, rally, and other high-performance driving disciplines where FIA certification is either mandated or represents an industry standard for risk mitigation. The Race V3 line balances regulatory compliance with modern fabric comfort, making it a foundational component of a complete racing safety package.