Head's Supershape range is for the skier who's looking to ski the whole mountain, whatever the conditions. They feature technology from Head's World Cup-winning skis, giving you the ultimate performance. The Supershape series features Head's KERS technology to provide you with additional power and acceleration by stiffing the tail of your ski at the end of your turn. This is achieved through the use of Intellifibers which transform kinetic energy into electric energy which is stored in the embedded chip in the ski. At the end of the turn, the microchip releases this energy into the fibres of the tail. The tail of the ski stiffens, immediately increasing rebound for maximum acceleration at the end of the turn.