Agility is the main advantage of these boots designed for long hiking and light mountaineering. The waterproof membrane keeps your feet dry during approaches in wet and scrubby environments, while the precise adjustment is a real blessing for fast alpine hikes along a ridge. They are more breathable than four-season mountaineering boots, but they are compatible with crampons for crossing small glaciers, climbing out of a deep ditch or crossing a bergschrund. 
 
Upper made of water-resistant L-Tech and Microtech materials
Memory foam strap for optimal comfort
Laminated Outdry membrane prevents water infiltration
Flexible upper design for a natural gait
Self-molded padding at the ankle for a custom fit
Pro-Fiber XT 20 footbed for insulation and support
EVA foam and thermoplastic polyurethane midsole with multiple density absorbs impact well and maintains sensitivity
Very grippy Vibram Mulaz rubber sole
Compatible with crampons with mixed fixing