Lowa updated the Alpine Ice GTX Mountaineering Boot with an integrated gaiter that gives greater protection for mixed climbs and low-altitude expeditions. Gore-Tex Duratherm includes warm insulation as well as rugged waterproofing and comfy breathability. The upper also has a slingshot heel for a secure foothold, and the memory fit footbed conforms to your footshape for a solid fit. The boot feels very stiff underfoot to ensure a solid performance whether you're hiking through snow or clibming up ice.