Wear the Asolo Men's Alta Via BV Mountaineering Boot on the approach, on the wall, or with a pair of crampons on ice. These do it all boots were built for mixed climbing at high altitudes, and as a result feature an intuitive design that's rigid and responsive but still comfortable enough to wear on long approaches. Their Gore Tex Insulated Comfort membrane provides both warmth and waterproof, breathable performance, while their Perwanger leather upper is durable and water resistant. Flex points at both the front and back of the ankle allow your ankle to move comfortably while you hike, but with Asolo's heel locking technology and injection molded TPU lateral shell, the boots are extremely supportive when climbing on both rock or ice. The Vibram Vertical rubber sole is crampon compatible and is supported by a Pebax frame as well as an anti shock PU insert in the midsole. An anatomic footbed ensures a comfortable fit, so you're not dying to pry these boots off after a long day in the alpine.