Abstract: A plastic ski boot, comprising a molded shell formed of one solid stock with the sole, an upper insole rigidly situated at the bottom of the shell and above the sole, flexible tightening means taking support on the different faces of the shell, intended to firmly tighten the shell to the foot of a skier, wherein at the level of the heel, at the interior of the space formed between the upper insole and the sole, a rigid member connected to the end of the tightening means which, when it is subjected to a pressure exercised on the rear of the boot by the boltlocking of the rear abutment of the connection of the binding to the boot, exerts on said tightening means a force assuring holding of the foot in the interior of the boot.

Abstract: A molded plastics material boot, for example a ski boot, in which a rigid sole has a rigid shell upper molded integrally therewith, the rigid shell having first and second relatively movable portions, and at least one closure element for clamping the portions in a closed position on a wearers foot. Each of the closure elements is in the form of a closed loop of flexible cable the first ends being connected to one of the molded portions of the shell upper, and the lever being mounted on the second end of the loop in a pivotable manner and engageable with a fixed seat molded onto the second portion, the end of the lever being engageable in the fixed seat and being pivotable after engagement to effect tightening of the loop.