Waterproof PU coated leather and mesh upper - Metal hook and lacing eyelet for secure lacing - Bellows tongue keeps debris out - Protective rubber rand and toe cap - 200grams M Select WARM lightweight low bulk insulation keeps you comfortable - Kinetic Fit Base removable contoured insole for flexible support - Molded nylon arch shank - EVA midsole for stability and comfort - 5mm lug depth