Underwear Bottom Race V3 Gray 2X-Large SFI

The Alpinestars USA Underwear Bottom Race V3 in Gray, 2X-Large with SFI certification is a professional-grade undergarment designed for high-temperature motorsport environments. This racing underwear bottom is essential for those exposed to extreme heat, providing critical thermal protection in various motorsport applications, including open-wheel racing and professional automotive work.

Engineered to meet SFI Foundation standards, the Race V3 underwear bottom offers verified flame-resistance through independent testing. The third-generation design incorporates feedback from professional drivers, enhancing comfort, mobility, and thermal performance during high-stress conditions. Its fitted profile ensures effective heat management while preventing bunching under racing suits.

Ideal for competitive motorsports participants and professional drivers, this product is a vital component of FIA-compliant safety gear. The practical gray colorway enhances visibility in technical environments and integrates seamlessly with racing suit systems, making it a foundational layer for those who prioritize safety and performance.