Abstract: The invention is related to a ski boot having a pivoting front cuff including a rigid shell base on which is at least partially journaled an upper that includes a front cuff and a rear spoiler, the front cuff being pivotally mounted in the end zone of the shell base and covering a longitudinal slit provided in its upper front portion. On either side of the longitudinal slit of the front cuff are defined two transverse tongues that are joined together by at least one flexible traction element interposed between an anchoring element of one of the transverse tongues and a manoeuvering member affixed to the other transverse tongue so as to constitute an inner foot tightening device. According to the invention, the front portion of the front cuff includes slots adapted to allow its free sliding with respect to the corresponding spacers of the tongues so as to be applied permanently thereupon, regardless of the relative position of the tongues in accordance with the state of the inner foot tightening device.