Abstract: The front sole holding device comprises a support bearing which is rotatably supported in lateral bearing blocks which are fixed with respect to the ski, the ski boot resting on the support bearing in a positive-locking manner in the cross-country skiing position. In order to achieve this positive-locking engagement, the boot sole comprises a recess which is adapted to the support bearing constructed as a straight-line shaft, the support bearing fitting into the recess. A tightener lever serves to hold the boot on this support bearing, which tightener lever is swivelably supported by means of tension bars and comprises, at its free end, a pressure piece which presses on the overlapping edge of the boot sole in its closing position, in which the tightener lever is located in a top dead center position.