The Up & down system reduces the slope effect and improves walking comfort considerably.
Going uphill :
the device lifts the heel, relieves stress on the calf and provides maximum traction for each step.
Normal position :
On the flat, the binding articulation lets you walk in a comfortable and natural way.
the back of the binding goes under the deck in order to keep the foot flat, preventing the foot from jutting out at the front of the shoe.