Scarpa Alien 4.0

The Alien 4.0 is a full carbon ski boot developed with our top athletes for skimo races. The anatomical shape of the shell guarantees a comfortable fit and the rockered shape ensures perfect energy transfer to the ski. The integrated gaiter prevents snow from penetrating the shell during the ascent and descent. The BOA® Fit System provides a stable and adjustable closure without pressure points. To get the most out of your ski boots, we recommend that you have the inner shoes thermoformed at a dealer from the SCARPA network.