ROCKMARK Kids Waterproof Snow Boots Mid Calf Warm Winter Outdoor FootwearBlack, Size: 12.5, 7.5" LengthThe inner layer is made of waterproof sock to prevent water leakage, and the outer material is treated with water repellent to achieve a double waterproof effectLining Made of high-quality air-permeable material, conduct the foot warmth the outside, keeps the foot warm and dry.Uppers waterproof and air-permeable leathers and textiles are used.The sole is made of natural non-slip rubber, wear-resistant and non-slip.