Amazon.com | UGG Men。Weather Rated to -20ºC Cold-weather styles with this icon are rated for temperatures as low as -20°C (-4°F). Treadlite by UGG™ Proprietary compound which increases cushioning and traction for a supremely lightweight, ultra-durable sole. Waterproof Features Designed to help protect against mild or moderate weather conditions, but not suitable for heavy precipitation. Features waterproof materials, and waterproof seam-sealed construction below the ankle. If present, zippers are treated with water-repellent coatings. Waterproof Features Seam-sealed construction Waterproof suede Ripstop nylon upper UGG® Tasman webbing (100% recycled polyester) 17mm UGGplush™ 80% upcycled wool, 20% lyocell lining, 3M Featherless synthetic down filler made from 100% recycled polyester 17mm UGGplush™ 80% upcycled wool, 20% lyocell insole Foam footbed Treadlite by UGG™ outsole for comfort Cold-weather rated to -20˚C Heat-embossed UGG® logo Silicone galosh