Binding for snowboard, kitesurf or wakeboard, with a highback that is rotatably controlled by a lever used as a boot ramp

A binding for a snowboard, a kitesurf or a wakeboard, comprising:

• a base, a highback that is movable around a first axis of rotation mounted on the base and a lever that pivots around a second axis of rotation mounted on an arch of the base and in opposition to a toe strap relative to the first axis of rotation, so that a power lever arm can be used as a putting-on ramp in counterforce against a stopper of the toe strap, wherein the lever cooperates with the highback through a resistance lever arm while the second axis of rotation is an axis of rotation exclusively between the lever and the base, to allow the resistance lever arm to move the highback around the first axis of rotation between an open position and a closed position, when the resistance lever arm is rotatably controlled around the second axis of rotation by the power lever arm, used as the putting-on ramp.