Alpina CCL 2.0 Compettion Ski Boot. Suitable for exercise skiers and long-distance skiers. Alpina CCL long-distance boot for exercisers or long-distance skiers who want the fit of a racing boot but also focus on high comfort. High torsional stiffness combined with stable construction gives you the freedom to focus on your technique and to get to the finish line. 4Dry technology in the upper protects against water and melting snow so that your feet stay dry, while good moisture transport allows them to breathe.