These bindings have proven themselves in the toughest test lab in the world: the Alpine Ski World Cup. Because the precise interplay between components ensures optimum power transfer, effective control & perfect edge grip. & because they can be adjusted precisely & easily to the skier, conditions & race circuit. They are available as a World Cup version X 20 RS (DIN 12-20), X 19 (DIN 11-19), X 16 (DIN 8-16) & X 12 (DIN 4-12) & can all be positioned variably on the longitudinal axis. In addition, the X 20 RS features adjustable sole holders.