100% waterproof seamless construction - 5mm Neo-Tech upper provides medium-weight and waterproof comfort - Air mesh lining with Max Wick coating evaporates more sweat to keep feet drier - Internal nylon shank for flexible support and stability - Vibram Arctic Grip outsole provides industry leading grip in icy conditions - Comfort range from -58F to 40F for cold-weather warmth and two-season wearability - EH-rated for electrical hazard safety - Soft toe (not a safety toe)