From UGG, the Women's Adirondack Meridian Hiker Waterproof Leather Winter Booties feature: Waterproof leather and nubuck upper Weather Rated -32C GORE-TEX internal membrane bootie 10mm UGGplush™ 60% upcycled wool, 40% TENCEL™ Lyocell collar Embossed UGG® logo Gusseted tongue with water repellent coating UGGextreme™ reflective silver woven tongue label Non-wicking laces reflective ticked laces with metal speedlace eyelets UGGextreme™ reflective silver TPU print on webbing heel pull 10mm curly UGGplush™ 60% upcycled wool, 40% TENCEL™ Lyocell lining 10mm curly UGGplush™ 60% upcycled wool, 40% TENCEL™ Lyocell sockliner PU foam footbed incorporates 25% of Susterra® plant-based compound and 75% PU from petroleum Midsole incorporates 44% sugarcane Vibram ® outsole with ICETREK rubber compound, Lightweight and textured rubber mudguard Vibram® Traction Lug technology Approx. 4 boot shaft height Approx. 14.6" boot shaft circumference Imported.