The Mountain Trainer Mid GTX is a lightweight men's summer alpine trekking boot with a robust suede leather and fabric upper plus waterproof and breathable GORE-TEX(R) protection. Designed to provide extra flexibility and increased comfort on both ascents and descents during alpine trekking in mixed and technical terrain, the Mountain Trainer Mid GTX has a new midsole with dual-density Bilight Technology which is ergonomically shaped to cradle your foot and provide all-day comfort on longer hikes. At the ankle, the Flex Collar allows natural movement and adaptability during descents for extended comfort, even when carrying a heavy pack. Underfoot, the lightweight, compact Vibram(R) Wrapping Thread Combi (WTC) sole delivers solid yet forgiving walkability. And SALEWA's patented 3F System provides flexibility, support and a blister-free fit from day one. In addition, the GORE-TEX(R) Performance Comfort lining delivers optimized weather protection and climate comfort. Features: - High traction Vibram outsole - Multi-Fit Footbed with interchangeable layers to adapt to the shape of your foot - The trademark SALEWA 3F System connects the instep area of the shoe with the sole and heel; ensuring flexibility, support and the correct fit where it's needed. - Climbing lacing for greater fit control - Adaptive memory foam closes all gaps between your heel and your shoe to provide a snug fit and support the ankle and lower foot.