A revolution in the world of crampons with a minimalistic weight of 260g. You get super fast transitions during racing or training from the cycle sport-inspired entry system. On the sole of the compatible boots there is a small hook where you hook in the Cramp-In. Then only the lever on the heel must be moved upward -- and you’re done. Size adjustments are infinitely variable and accomplished without tools.Another advantage is there is no more right-left difference.