Underwear Bottom FR Black 4X-Large SFI 3.3

The RaceQuip Underwear Bottom FR Black 4X-Large SFI 3.3 is a specialized fire-resistant base layer designed for motorsport drivers who prioritize safety during high-performance racing. This garment is essential for those competing in various racing formats, providing a critical thermal barrier against heat sources encountered in race vehicles.

Constructed from fire-resistant materials, the RaceQuip underwear bottom is engineered to withstand extreme conditions, ensuring passive thermal protection. The SFI 3.3 certification indicates that this product has passed rigorous flammability testing, making it a reliable choice for drivers concerned about safety in the event of fuel spillage or electrical fires.

Drivers engaged in NASCAR, road racing, drag racing, and other sanctioned motorsports will find this base layer compatible with full racing suit systems from various manufacturers. The black color helps conceal stains while maintaining a professional appearance, and the 4X-Large size ensures comfort and mobility during extended driving sessions.