Combination of a ski binding and of a boot adapted thereto

In combination a ski binding (10) particularly adapted for cross country, touring or telemark skiing, a boot (11) adapted for such skiing, said boot having a sole with a forward sole (15) and a heal (13), said ski binding including a resiliently elastic biased clamp cable (2) having a first end fixed to the ski and a second end engaging the forward sole of hoot (11) between the ball area of the forward sole and the rear end of the forward sole, the improvement wherein said forward sole includes a groove having side walls substantially parallel to the longitudinal direction of the ski and sole and a transverse vertical wall connecting said side walls via the inner end of said side walls, and said clamp cable (12) located in said groove and includes an inner portion engaging said vertical wall and side portions engaging said side walls, and said cable including a resilient elastic part holding the boot in place and establishing elastic movement in a direction vertical to the forward sole (15) whereby the heal (13) of the boot (11) can be freely raised during skiing.