Abstract: Closure device for sports footwear, especially for a ski boot. On one edge of a front opening of the boot, a series of levers is provided with their free end having a hook and tightening pin, while a corresponding series of rack elements 10 is provided on the opposing edge of the front opening. A groove 14 in each of the rack elements can receive the hook of a lever. Provided at the free end of at least one rack element 10 is an extendible and retractable additional hooking element 26 which can receive the hooking pin of the opposing closure lever. The extendible and retractable additional hooking element 26, when in its operative state, projects outside the free end of the rack 10 which is therefore extendible.

Abstract: By embedding blocks of resilient material, where necessary reinforced, in the toe-piece and heel of the sole of a ski-boot, so that their upper surfaces make contact with a counter-sole made of rigid material internally covering the bottom of the shell and with the bottom of the wedge contained inside the shell, the responsiveness and the accuracy of transmission of the movements from the limb and foot of the skier to the ski remain unaffected, while the muscular fatigue affecting the limbs and back of the skier is substantially reduced.

Abstract: The closing and clamping lever for a ski boot comprises a substantially perimetral structural casing (10a,12a,13a) which is provided on at least the sides of the body (10b,12b,13b) of its components, which is made of plastic. A couple of transverse portions (27,28) are also provided. The casing is for example made of metal or an engineering polymer. In this latter case it may be manufactured integrally with the body (10b,12b,13b) of the lever components.