Grivel’s most technical crampon is now at its fourth evolution, integrating anti-balling plate and simplifying all adjustments: just one screw to adjust the length, just one screw to substitute a point, just one screw to position the spur (spur is optional). Rigid crampon with anatomic curve. Asymmetrical forged mono-point, extremely easy to substitute with just one screw, integrated with a half point external lateral support point: a new solution for external support. Structure in rigid plastic acts as a spacer for the screws and as support for the anti-balling device. Four retention points for descent. Completely patented.