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 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 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 Performance Comfort lining delivers optimized weather protection and climate comfort.