The Mountain 600 Evo combines the heritage styling of the Mountain 600, one of Danner's best-loved hiking boots, with trusted, premium components to create a boot with the stability and support you need for long-distance backpacking. A waterproof and breathable GORE-TEX liner keeps feet dry on long, rainy days on the trail. A TPU shank distributes weight evenly underfoot and provides stability over rugged terrain while allowing your foot to feel the benefits of the Vibram SPE midsole's rebound and cushioning.