Abstract: The device is composed of a vertical axle positioned in a case made rigid with the rear half-shell of the quarter of ski footwear. The axle having at a middle region thereof, an inclined tooth gear which is actuated by a ratchet lever to cause its co-directional rotation with winding of stays having second ends associated with the front portion of the quarter thus effecting the closure of the boot. The lower end of said axle includes a thread portion adapted to cause upward movement of a block which in turn causes tensioning of cables associated with an element positioned on the foot instep, thereby causing tightening of the same. Also provided are a means of releasing the inclined tooth gear with consequent opening of the boot quarter, and a means of adjusting the tension exerted by the upward movement of the block on the cables.