Extreme durability and stability for an indestructible, lightweight boot for mountaineering and trekking. The Salewa Condor Evo GTX is prepared for semi-automatic combi crampons. Gore-Tex: Gore-Tex laminates are at the forefront of the technical clothing industry when it comes to waterproofness, breathability and durability. The Gore-Tex membrane is completely waterproof and at the same time allows perspiration to be transported to the outside. It consists of pores that are 20,000 times smaller than a drop of water and at the same time 700 times larger than a water vapour molecule, so no water can penetrate from the outside and the moisture from the inside can get to the outside.