The present invention relates to a release mechanism for a ski binding system, wherein the system comprises a ski shoe wherein pins moveable in each direction are arranged and at least one intermediate spring element, wherein the pins are adapted to slide in a barrel between a protruding and a retracted position, The system comprises a frame with two vertical parts arranged on a ski, wherein each vertical part has an opening each for receiving a pin protruding sideways out of the ski shoe, two bails with claws at one end and brought together in a manipulator at the other end, wherein the claws and the manipulator are adapted so that they can move synchronously into the openings in the opposite direction of the pins.

A front unit for a touring binding, comprising: two lateral bearing portions arranged on a ski transverse axis, wherein, when the front unit is in a closed position, the two lateral bearing portions are configured to engage lateral counter bearing portions of a ski boot to hold the ski boot on the front unit so that the ski boot can pivot about the ski transverse axis; and a longitudinal positioning portion on which the ski boot can be supported, wherein the counter bearing portions are positioned for engagement relative to the bearing portions, the front unit being shiftable between an open position and the closed position, wherein the bearing portions and the counter bearing portions are disengaged in the open position and engaged in the closed position, wherein the longitudinal positioning portion, relative to the bearing portions, is secured in the open position and movable in the closed position.

A telemark binding includes a base, a first jaw, a second jaw, a first pin carried by the first jaw, a second pin carried by the second jaw the first and second jaws being arranged with respect to each other to assume: a first configuration ready to receive the toe of a ski boot, and a second configuration with the toe of the ski boot hooked; a slider slidable with respect to the bas; a service lever designed so that, starting from the second configuration with the toe of the ski boot hooked, a first rotation of the service lever in a second direction of rotation brings a first end of the service lever to abut the base, so that the service lever assumes a first position in which the user can walk uphill; a first hook sized to hook a rear protrusion; a longitudinal member elastically extendable.