The Carhartt Men's 11" Waterproof Insulated Western Boot is a rugged, waterproof work boot designed for comfort and durability. It features a full-grain leather and Cordura nylon upper with a waterproof membrane to keep feet dry. The boot has a steel shank for support, an EVA midsole for cushioning, and an oil-tanned leather welt. The outsole is made of rugged rubber lug for traction. For warmth, it has 200g 3M Thinsulate Ultra insulation. The boot opening measures approximately 11.25 inches in circumference and the heel measures approximately 1.5 inches. This is an ideal boot for working outdoors in cold, wet conditions.