Cougar Women's Canuck Vegan Winter Snow Boot NON-SLIP Outsole. REMOVABLE INSOLES, with the addition of felt and a layer of reflective insulation. Can be replaced with orthotics. COMFORT/WARMTH RATING: -10C to -30C / 14F to -22F GUARANTEED WATERPROOF, GUARANTEED VEGAN Polar Plush Lining(*Please order 1/2 to 1 size bigger then your usual size*)