Stay warm in these Butte Bomber boots brought to us by UGG! Featuring a waterproof leather and suede upper, wool lining, and a well made outsole for traction. Crafted to handle the harshest winter elements, the men's Butte pairs understated style with stay-dry technology. Cuffable, waterproof full-grain leather and ballistic nylon are finished with an exclusive Vibram outsole with repeating-lug pattern. An eVent membrane and moisture-wicking sheepskin lining offer the warmth and dry comfort characteristic of classic UGG.