Made with expert craftsmanship and top-of-the-line materials, these boots are built to meet the strict specifications set by the military. Waterproof GORE-TEX liner. Rough-out full-grain leather upper. Vibram Sierra outsole. Lace to toe for better fit. 400 Gram Thinsulate Ultra Insulation to keep feet warm in harsh winter conditions. Stitchdown construction and wider platform for stability. Weight 76 oz. Height 10″.