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.