These sturdy alpine climbing boots allow you to front point on steep ice with confidence yet remain flexible enough for French technique all day long. Durable 3.1-mm full-grain roughout leather uppers are impregnated with silicone for breathable water-resistance. Breathable, moisture-wicking Cambrelle(TM) polyester linings help prevent abrasion and blisters while keeping feet dry. Vibram(R) Clusaz rubber lug outsoles are step-in crampon-compatible and provide superior traction on rough, rocky terrain. Dual-density rubber Aircushion midsoles offer optimum cushioning and shock absorption. Full-length steel shanks and leather-covered tapered nylon insoles provide ample torsional support. Padded ankle collars and padded inner tongues protect ankles and insteps; gusseted leather outer tongues keep out trail debris. Rubber toe caps enhance durability.