Schischuh

The invention relates to a ski-boot structure in which the front cover piece (4) of the upper (3) is intended to constitute the reference element ensuring all functions relating to control of flexing of the said upper (3) in cooperation with rigid extensions (2) of the lower shell part (1) and the closure device (8) of the upper (3) over the skier's lower leg in the practical, skiing position. The front cover piece (4) includes, on the one hand, stops (16) located opposite stops (11) obtained on the extensions (2), this being in the upper zone of the upper (3) and, on the other hand, in the lower part where it is extended by fastening tabs (15), an elastic element (22) mounted in a pre-stressed state in order to act in the front/rear direction. The closure device (8) connects the cover pieces (4) and (5) together on the interposed extensions (2), thus permitting flexing of the front cover piece (4) and thus of the upper (3) forwards against the resistance of the elastic element (22) without stressing the said extensions (2) and blocking the said upper (3) rearwards by means of the stops (16) of the cover piece (4) against those (11) of the extensions (2).