Full-grain leather and tough Cordura® nylon upper. Breathable GORE-TEX® waterproof membrane lining. 800-gram Thinsulate™ Ultra Insulation adds extra warmth. Removable full-cushion insole. Compression molded EVA foam midsole with camo wrap. Wolverine® Rubber Lug outsole. Cement construction. Lightweight nylon shank fights fatigue.