The Kamik Waterbug 5 kid's winter boot features reflective NiteRays patches for after dark use. These snow boots also feature a seam-sealed waterproof construction and lightweight RubberHe bottoms for active kids. It is made of waterproof 600 denier nylon upper with adjustable snow collar. It includes an easy pull-tab and knob on the bungee laces. The temperature is rated to a comfort level of -40°F.