Waterproof and Insulated Winter Boots Waterproof nylon upper and seam-sealed construction with cozy insulation. Removable, washable liner with sherpa collar. Toggled laces for easy wear. Features: - UPPER: Waterproof PU coated leather upper. Seam-sealed waterproof construction. Laces are not waterproof. - INSULATION: Synthetic insulation. Removable 9 mm washable recycled felt inner boot with Sherpa pile snow cuff. - MIDSOLE: 2.5 mm bonded felt frost plug. - OUTSOLE: Handcrafted waterproof vulcanized rubber shell with Sorel aero-trac non-loading outsole. - HEEL HEIGHT: 1/2 in. - PLATFORM HEIGHT: 1/4 in. - SHAFT HEIGHT: 4 3/4 in. - LACE LENGTH: 14 in. Please note: Laces and zippers incorporated in SOREL footwear are not waterproof. About the brand Sorel, a Canadian company operating since 1962, presents its collection of boots for children aged 2 to 12 years. Make sure to keep your children’s feet warm, dry and comfortable with functional and waterproof boots that are easily adjustable with a quality velcro. Sorel guarantees safety for your children, regardless of the outdoor conditions.