For 100% waterproof protection from toe-nipping cold, Sorel® is a name you know you can trust. Rated to a frigid -25°F these boots fend off wet as well as cold, with a waterproof waxed cotton upper and rubber shell that stays flexible in sub-zero temperatures. The removable, washable felt liner holds in heat and feels so soft, we've been known to slip our bare feet in these boots to make a quick run to the barn or mailbox.