The FLEX ALP ups the ante for backcountry enthusiasts with micro-serrated 3D-Curved Traction Rails and the Viper 2.0 toe crampon and the NEW Active Fitâ„ 2.0. Providing comfort, support and an easy entry and exit with the new cinch strap feature. The Torsion Deck design reduces stress on your joints while creating a natural stride even through steep, icy terrain.