Makalus offer the support and protection for mountaineering and off-trail travel. Durable 3mm full-grain roughout leather uppers feature one-piece construction. Breathable, moisture-wicking Cambrelle?Epolyester linings help prevent abrasion and blisters while keeping feet dry. Rubber lug outsoles are compatible with step-in crampons and provide superior traction on rough, rocky terrain. Honeycomb polyurethane midsoles offer optimum cushioning and shock absorption. Full-length 1.5mm steel shanks and leather-covered tapered 8mm nylon insoles provide all the support you need to carry a week's worth of gear. Padded ankle collars and padded inner tongues protect ankles and insteps; gusseted leather outer tongues help keep water and debris out.