Now rated to the latest fire-retardant underwear is designed to work together with Power Racing's Dry System Suits to allow for maximum cooling regardless of the heat. The ultra-lightweight bottoms features 3D knitted inserts strategically placed to optimize body cooling. The slim/athletic cut not only allows for a comfortable fit under the driving suit, but acts to further improve moisture wicking to keep the body dry and cool. Ultra flat seams are used throughout. Size: Small, Medium, Large, X-Large, XX-Large Color: White, Black