Sports shoe, in particular alpine ski boot

The invention relates to a sports shoe (1), in particular an alpine ski boot (2) .Celle latter possesses an adjustment means (3) for the possible variation of the rigidity of the sole embodiment (4). Thereof (3) comprises a tension member (19), substantially undeformable under the influence of driving forces, which is connected to a sole plate (10) and a front sole plate (11) and extends in its central part freely between the plates (10, 11). The traction member (19) is adjustable in the longitudinal direction of the sole (4) for applying control forces adjustable relative to at least one sole plate (10, 11), a modified tensile force individually can be exerted by means of the traction member (19) between the plates (10, 11) .L'invention is applicable in the field of shoes.