Abstract: Ski boot constituted by a rigid shell (2) composed of a front and a rear cover (6, 5) hinged on a transverse pin (7). A flexible sock (8) is inserted in the shell (2) and comprises a front and rear (8a, 8b) liner pressed against the covers (6, 5) respectively, the rear cover receiving an inner covering (11b) which may or not be detachable. The rear liner (8b) of the sock (8) comprises, on its lower part (8d) facing the front liner (8a), a downward extension forming a flexible boot-fitting tongue (11c) of a length such that it may be extended continuously beginning at the liner (8b), along at least the inner portion of the heel (8c) of the sock (8).

Abstract: Rear-entry ski boot constituted as a whole by a rigid shell topped by an upper (1) and comprising a front cover (2) and a rear cover (3) hinged on a transverse pin. These covers are closed by a tightening system (8) incorporating a flexible connector (9) on which a guide device (15) on the rear cover (3) is covered with a movable cover (17) cooperating with the wall of this rear cover (3), and second, by a strap (30) which closes the top of the upper (1) and maintains it in position. The position-maintenance system on the strap (30) on the rear cover (3) is arranged on an upward extension (17a) of the cover (17) covering the guide device belonging to the connector, so as to form a single cover (31) for the guide or rear position-maintenance system (15) of the set of closing mechanisms.