Built to with stand the harshest winter elements, UGG's Butte Boot for men is a stylish option equipped with UGG's best cold weather technology for maximum warmth and comfort. Protecting your feet from moisture and cold temperatures are a waterproof leather, fluffy wool, and an eVent membrane. The Butte's exclusive Vibram® outsole provides traction on the iciest of terrains, while a foldable Woolrich tweed shaft offers style and versatility.