Stay safe and comfortable behind the wheel with fire-resistant and flame-retardant underwear from Behrent's Performance Warehouse. This essential layer of protection is worn underneath your auto racing suit to provide an extra shield against heat and flames. We offer a complete selection of flame-retardant and fire-resistant base layers, including socks, short and long-sleeved undershirts, and flame-retardant pants. All our base layers are constructed from high-performance materials like Nomex®, which is known for its excellent flame-retardant properties. But protection isn't the only benefit: these flame-resistant base layers are also moisture-wicking to keep you cool and dry throughout the race and absorbent enough to manage sweat. Find the perfect fit and style for your needs with tops, bottoms, and base layer sets from trusted brands like K1 Race Gear and Simpson Race Products. Shop fire-resistant underwear at Behrent's and ensure every aspect of your auto racing uniform prioritizes both safety and comfort.