The Dynafit Radical Ski Boot – modeled after the Radical Pro model – combines the seemingly contradictory worlds of freedom of movement on the ascent and rigidity for the downhill. In walk mode, the cuff and shell are separated from each other to be able to climb efficiently with a 60-degree cuff rotation for unrestricted, resistance-free mobility. Its low weight and flexible tongue construction made of two different high-tech synthetics ensures an energy-saving, natural walking movement even on steep terrain.