Previously, the Radical 2. 0 was all the rage, and Dynafit continues to push the limits in backcountry performance with its new ST Rotation 10 Binding. This midweight tech-toe option utilizes the same rotating toe piece and 10mm of forward pressure in the heel that made its predecessor so popular with hard-charging skiers, but Dynafit added a spring-tensioned toe-piece that auto-realigns itself to keep your boot in line with the heel-piece while clicking in.