The boot meets the demands of both ascending and descending mixed and technical terrain. For this, the Mountain Trainer Mid GTX uses a new midsole with Bilight technology. It is double-layered for high damping and ergonomically shaped - for good hold in the shoe and reliable wearing comfort even on long hikes. In the ankle area, the Flex Collar allows increased freedom of movement to the rear and thus a lot of comfort on the descent, even with a heavy pack. The lightweight, firm Vibram Wrapping Thread Combi outsole provides a stable yet natural walking feel. The patented Salewa 3F system offers flexibility, heel hold and a blister-free fit from the start.