High-tech alpine boots Lowa Alpine Ice GTX have a sole close to the ground, anatomical fit which uses memory foam follows the shape of the foot and helps prevent fatigue plus a curved heel for a secure fit comfort and support. Very hard underfoot, insulated but extremely lightweight for low altitude climbing boots and compatible with automatic crampons This is truly a Formula 1 boot for mixed climbs and low altitude expeditions. Durable waterproof and breathable Gore-Tex lining to protect your feet from the elements.