The Alien 4.0 is the full carbon boot, designed and developed with our best athletes and dedicated to race oriented ski mountaineers. The anatomic shape of the shell guarantees comfort and an effective rocker shape, to aid in transferring energy to the skis.
- Gaiter: The integrated gaiter is specifically designed to prevent snow entering the shell during climbing or downhill.
- Sole: The new UFO 4.0 sole is an exclusive SCARPA sole, made with TOP85 Vibram® compound that offers great durability and grip in cold conditions.
- Closure system: The new BOA® Fit system provides a strong closure and a customizable fit for maximum comfort without pressure points. The system stays locked in even after many hours of use.
- Liner: The Intuition thermoformable liner guarantees a precise, yet comfortable fit. Intuition liners ensure feet are kept warm and comfortable during extended use, without pressure points.