Abstract: A ski boot having a shell and a leg portion (3) which is pivotable in the longitudinal direction relative to said shell. To permit entry into the boot from the rear, the leg portion may comprise a sleeve, which is to surround the front, lower portion of the user's shin bone and is open towards the heel, and a cover which is forwardly-upwardly and rearwardly-downwardly pivotable relative to said sleeve and, when the boot has been put on, the cover is securable on the sleeve by its closing means. The leg portion, or respectively the sleeve, has in its front region at least one slot which extends downwardly from its upper edge. In the instep region of the leg portion (3), this ski boot has two leg portion flaps (18,18') which are interconnected by means of at least one pivot member (21, 21a), so that they are vertically displaced in opposite directions relative to each other.