Elliptical Rocker Technology (ERT) is based on the radius of an ellipse rather then a standard circle radius. This means the ER arches up over a much longer section of the ski than in the case of a standard rocker. The new long rockered tip supports smooth powder ride without the effect of “riding up” the snow or terrain unevenness while pushing away the top layer of snow at the same time. Available in: Werewolf, Vixen, Destroyer, Superior, Velvet, Rock’n’Rolla