Sports shoe comprising: - a lower part, which is adapted to surround the foot of a user; - an upper part, which is designed to surround the lower leg of the user and which can move relative to the lower part; - means for at least partially blocking movements of the lower part relative to the upper part; - the upper part comprises a separate lateral part and medial part, each rotationally articulated with the lower part; - the blocking means include a blocking element that can move between a blocking position, in which the blocking means at least partially lock the movements of the upper part relative to the lower part, and an unblocking position, in which the blocking means allow the movements of the upper part to be free relative to the lower part; and - when the blocking element is in the unblocking position, the blocking means enable a relative translation movement of the lateral part relative to the medial part, at least in a direction perpendicular to a tread sole of the shoe, when the blocking element is in the unblocking position, the following movements are simultaneously enabled: - a longitudinal bending movement of the upper part relative to the lower part about a first axis perpendicular to a longitudinal median plane of the sports shoe; and - a lateral bending movement of the upper part relative to the lower part about a second axis generally parallel to a longitudinal axis (X-X') of the sports shoe, characterized in that the upper parts and of the parts and together surround the lower leg on an angular sector that is greater than 300°, and in that it comprises means for locking the blocking element, said locking means comprising a lever articulated with the blocking element, as well as a cable engaging with the lever, the ends of which are attached to the lateral and medial parts, so that, in the blocking position, the lever exerts a tension on the cable. - a lower part, which is adapted to surround the foot of a user; - an upper part, which is designed to surround the lower leg of the user and which can move relative to the lower part; - means for at least partially blocking movements of the lower part relative to the upper part; - the upper part comprises a separate lateral part and medial part, each rotationally articulated with the lower part; - the blocking means include a blocking element that can move between a blocking position, in which the blocking means at least partially lock the movements of the upper part relative to the lower part, and an unblocking position, in which the blocking means allow the movements of the upper part to be free relative to the lower part; and - when the blocking element is in the unblocking position, the blocking means enable a relative translation movement of the lateral part relative to the medial part, at least in a direction perpendicular to a tread sole of the shoe, when the blocking element is in the unblocking position, the following movements are simultaneously enabled: - a longitudinal bending movement of the upper part relative to the lower part about a first axis perpendicular to a longitudinal median plane of the sports shoe; and - a lateral bending movement of the upper part relative to the lower part about a second axis generally parallel to a longitudinal axis (X-X') of the sports shoe,