Ugg Butte Winter Boot Review | Better Trail。UGG Butte Mono Putty Waterproof Outdoor Rugged Boots This update to our timeless Butte is rugged on the outside and cozy on the inside. Cold-weather rated to -32C (or -25.6F), it features waterproof bootie construction, cozy sherpa and UGGplush lining, and an innovative Vibram® outsole for enhanced traction on a variety of terrains. Waterproof Designed to help protect against heavy weather conditions, including water, rain, and snow. If present, zippers and tongues are gusseted and treated with water-repellent coatings. Weather Rated to -20ºC Cold-weather styles with this icon are rated for temperatures as low as -20°C (-4°F). Waterproof Waterproof membrane bootie construction Gusseted tongue with water repellent coating Cuffable shaft 8mm sherpa lining on vamp, 8mm sherpa lining on quarter, 17mm UGGplush™ 80% upcycled wool, 20% lyocell lining 7mm UGGplush™ 80% upcycled wool, 20% lyocell insole EVA footbed EVA midsole Vibram® outsole 8.5\" shaft height Cold-weather rated to -20˚C Metal UGG® logo hardware, Woven heel label with UGG® logo Brand New with Tags intact on bottom. Without original box. Best for: Casual, Light or moderate rain, Light snow, Heavy rain, Heavy snow