Keen's lightest, warmest, flexiest snow boot for kids. With KEEN.BELLOWS FLEX in the forefoot. Bye, penguin waddle. Hello, flexy snow day fun. FEATURES KEEN.DRY waterproof, breathable membrane KEEN.FUSION rubber for lightweight durability Multi-directional lug pattern provides superior traction KEEN.BELLOWS FLEX in the upper for more bend and less wear Ergonomic toe notch provides added dexterity for better balance 400g of KEEN.WARM insulation rated to -40°F/-40°C PFAS-free, durable water repellent MATERIALS Lightweight performance nylon upper Lace-lock bungee system with adjustable hook-and-loop strap Removable thermal liner Non-marking KEEN.FUSION rubber outsole CARE Gently brush leather with a soft bristle brush or hand towel to remove loose dirt and debris. Tough stains may require a leather cleaner. Keen Big Kids' Snow Troll Winter Boots