Blending high-performance technical features with UGG®extreme comfort and maximalist style, this winter weather snow boot is ready to take on winter weather, rated to withstand temps as low as -32°C. It's crafted from top-quality waterproof leather and features an internal GORE-TEX layer that is waterproof yet breathable. The canvas collar is filled with responsibly recycled polyester featherless down and can be cuffed or worn up for even more defense against the elements. The interior is finished with our signature UGG®plush blend for a soft, cozy feel that is unmistakably UGG®. The midsole is made from renewably sourced sugarcane and finished with a Vibram outsole with ICETREK rubber compound, Vibram outsole with Arctic Grip for enhanced traction on slick or icy surfaces, from the streets to the slopes. Waterproof. Waterproof leather. Gusseted tongue with water repellent coating. GORE-TEX internal membrane bootie. GORE-TEX seam seal tape. Canvas collar made from 100% recycled polyester fibers, Front pull tab, Heel counter puller. Recycled polyester laces. 17mm UGG®plush 60% upcycled wool, 40% lyocell vamp lining. 3M Thinsulate insulation. Sugar Sole EVA midsole. Vibram outsole with ICETREK rubber compound, Vibram outsole with Arctic Grip for traction. Embossed UGG® tongue logo, Graphic UGG® embossed logo on shaft, UGG® logo on heel, reflective UGG® Extreme screen printed logo on heel pull, GORE-TEX woven label, Vibram Logo on outsole sidewall. RN 88276. UGG® Shasta Boot Tall Leather/Waterproof Cold Weather Boots in Black, Size M 3/W 4