Sorel 1964 Nylon Men's Snow Boots This boot, which protects you in snowstorms, has a stylish style. With the waterproof leather boot, you can do whatever you want in temperatures down to -25 °. - Removable and washable recycled felt inner boot.; Bonded felt frost preventer.; Waterproof full-grain leather upper.; Stitched waterproof construction.; Handmade waterproof vulcanized rubber outer.;