EMBRACE THE CHILL Meet the boot that makes icy days actually enjoyable. It has a waterproof nylon exterior, seam-sealed construction to keep you dry, and warm insulation. UPPER: Waterproof nylon upper. Seam-sealed waterproof construction. Laces are not waterproof. INSULATION: Removable 6 mm washable recycled felt inner boot. MIDSOLE: 2.5 mm bonded felt frost plug. OUTSOLE: Handcrafted waterproof vulcanized rubber shell with herringbone outsole. Uses: Heavy Snow