Arc rating: 16.3 cal/cm². 10 oz. polyurethane fabric over cotton knit. NFPA 70E, ASTM F1891, ASTM F2733, ANSI 107 compliant. Breathes and releases moisture from the skin. Softness and pliability make it less likely to get caught on branches or brush. Stitched and sealed to prevent liquid from getting in or penetrating the garment. Anti-wicking on the bottom of legs to prevent moisture.