The Kamik Men's Blackjack Apres Ski Boots are a gamble that you will always win for both style and protection! Waterproof leather and nylon upper. Waterproof and flexible synthetic rubber shell. Seam-sealed waterproof construction keeps out the wet elements for a dry foot environment. Fixed 200B 3MThinsulate insulation provides protective warmth against the cold. Moisture-wicking brushed nylon lining for excellent breathability. Padded collar and waterproof gusset tongue. Traditional lacing system with rustproof metal eyelets. Removable Kamik comfort antibacterial footbed offers both comfortand an odor-free environment. Defender synthetic rubber winter outsole provides excellent traction.