Comfort and speed collide in the trail running expansion of their much-loved Sertig collection. Lightweight and flexible, its Mammut Swiss Design sole provides great responsiveness and grip, while its GORE-TEX membrane keeps feet dry when the weather isn’t. Rounded off with a breathable mesh forefoot, high-rebound midsole, and foam-lined ankle for exceptional cushioning and comfort, it’s the ideal partner to level up your mid-distance runs.