The all-mountain Libertine Pureflex employs a minimal lacing system which independently tightens key areas of the boot for a custom fit and a smooth, even flex. One easy pull controls four zones of tightness for quick access to a natural flexing design—the only lacing system that activates the inner cuff and the shell with the same pull. The boot also features a new three-part outsole with AntiGravity midsole and the AntiShock gel heel insert for cushioned landings, extra lightness and superior grip. The shell is built with a 3D Molded EVA Shell Tongue, Skate Cuff and Molded TPU Backstay.