The Sapuen High is the right choice on any terrain. Mammut Flextron Technology™ supports the natural rolling of the foot and thus a more efficient use of energy when hiking and mountaineering. Maximum comfort is ensured by Mammut Georganic 3D Technology. All parts in contact with the foot are anatomically shaped for a perfect fit, and the classic tongue construction offers easy entry. Optimized for hiking: A Vibram® rubber compound for good grip on outdoor surfaces and a sole design that supports self-cleaning. Dry feet are guaranteed by the waterproof Gore-Tex® membrane.