Waterproof seam-sealed construction and insulated interior for warmth and comfort during winter activities. Comfortable and Stylish Winter Boots Waterproof seam-sealed construction and insulated interior. Perfect for snowmen building, family hikes, and winter activities. 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 in. LACE LENGTH: 14 in. Please note: Laces and zippers incorporated in SOREL footwear are not waterproof. Measurements based on size 8. Imported