A shoe assembly includes a front sole section, a rear sole section, a heel, and a hinge. The front sole section has a front sole section rear edge. The rear sole section includes a rear sole section front edge, a shank, and a release button. The heel may be removably attached to the shank and may be released from a locked position by the release button. The hinge connects the front sole section and the rear sole section. The hinge is perpendicular to a rear sole section axis.

A shoe with a heel that is adjustable in height. The heel includes a hollow body fastened to a sole of the shoe, and provided with grooves arranged at different heights from one another. A group of components including a lever are inserted into the hollow body for mutual sliding. A button is connected to the lever for causing rotation of the lever. A locking element is connected to the lever to switch from a locked position to a sliding position. In the locked position, the locking element is inserted into a groove of the hollow body, whereby the group of components and the hollow body are mutually locked in position. In the sliding position, the group of components and the hollow body can mutually slide. An elastic member is arranged to exert a force which brings the locking element from the sliding position to the locked position.

A shoe with a heel that is adjustable in height. The heel includes a hollow body fastened to a sole of the shoe, and provided with grooves arranged at different heights from one another. A group of components including a lever are inserted into the hollow body for mutual sliding. A button is connected to the lever for causing rotation of the lever. A locking element is connected to the lever to switch from a locked position to a sliding position. In the locked position, the locking element is inserted into a groove of the hollow body, whereby the group of components and the hollow body are mutually locked in position. In the sliding position, the group of components and the hollow body can mutually slide. An elastic member is arranged to exert a force which brings the locking element from the sliding position to the locked position.