Abstract: A supporting part in the form of a boot-like partial shoe, made of substantially rigid material, and which is open at the front and laterally encloses the rear area of the foot and also a portion of the lower part of the leg, with an opening in the supporting part at least in the area of an anklebone and fastener elements beside the front opening. The front area of the partial shoe located between the front edge and the opening for the anklebone is interrupted and substantially forms two tabs which overlap at their end portions. Swivel joints are operably arranged between the substantially overlapping end areas of the two tabs for enabling restrained relative motion between the substantially overlapping end portions of the two tabs. The interruption in the front area of the partial shoe ensures elimination of compressive and tensile stresses on the front area when the support is being worn and particularly when the wearer is walking.