Essential by the mountains.

Two shoes. Two different ways to race. Developed with elite athletes and refined across countless kilometers, they deliver everything that matters when every second counts: precision, lightness, energy return and confidence on technical terrain.
Limited Edition. Orange.

Built for short, fast and technical races. Alien Sky is designed for athletes who demand immediate response and absolute precision. Lightweight by necessity, precise by design, it stays connected to the terrain so every move feels direct, confident and controlled.

Built for long distances on any terrain. When the race keeps going, consistency becomes performance. Alien Ultra balances control, energy return e precise fit to help athletes stay efficient over ultra distances without losing confidence on demanding trails.

Then we learned how to run with it. Less weight. More energy returned. More speed on the trail. Discover how we found Alien technology.