Children's Winter Boots Waterproof 600 denier nylon and synthetic nubuck upper Adjustable snow collar with Easy-Grab Lace Lock 8 mm Zylex® removable liner (97% recycled content) Moisture-wicking lining Adjustable midfoot hook and loop strap Waterproof and lightweight synthetic Rubber shell SNOWAVE lightweight, non-marking, synthetic Rubber outsole Fast to put on and take off, Kamik’s Rocket snow boot for kids stands up against whatever winter launches its way. Watch your kids run, jump and play in the snow, knowing their feet are warm and comfortable. Plus, the RubberHe waterproof bottoms of these winter boots for kids keep feet dry. Kamik Children's Rocket Boot - 2023 model