Crafted to handle the harshest winter elements, the men`s Butte pairs understated style with cold weather technology for signature UGG warmth and comfort. Waterproof leather, luxurious wool, and an eVent membrane protect feet from moisture and temperatures as low as -20 degrees C. Built to last, the exclusive Vibram outsole with a repeating lug pattern provides traction on icy terrain, while a foldable Woolrich herringbone tweed shaft offers styling versatility.