With a tighter turning radius than the i.Supershape Speed, but sporting the same narrow waist width, the i.Supershape likes to turn....fast! For the advanced to expert level skier who spends the majority of their time on the slopes carving up the frontside. For the stronger skier, perhaps the ex racer who likes to ski hard and ski fast but doesnt want to work hard to get their turns. Features HEADs Worldcup Race and Intelligence technology to provide you with a super stable, high performance speed machine.TECH FEATURES:Kinetic Energy Recovery System KERS: KERS Technology works like a turbo charger that provides additional power and acceleration by stiffening the tail of the ski in outturns.Intelligence: Intellifibers positioned at 45 degrees in front of the binding transform mechanical impulses into electrical energy. The harder you ride, the more energy is produced. The electrical energy is led back to the Intellifibers. This causes them to stiffen up, putting more rebound and torsional stiffness into the ski.