Full-grain leather upper. Protective rubber rand and toe cap. Waterproof membrane treated with M Select�?FRESH. Conductor�?fleece lining. EVA removable footbed. Molded nylon arch shank. Merrell Air Cushion in the heel. EVA midsole. M Select�?DRY seals out water and allows moisture to escape. Vibram® Arctic Grip�?outsole. 5mm sole lug depth. 822g weight.