Abstract: A ski boot in plastic material includes a shell adapted to receive the foot, a front spoiler articulated on the shell for pivoting frontwards thereof and adapted to grip the bottom part of the leg, a buckle system for tightening the front spoiler on the bottom part of the leg, and a damper joined to the shell and to the front spoiler. A flexible arciform plate is further provided which adopts the general shape of the instep, an upper end of the plate being joined to the front spoiler, and a lower end of the plate being joined to the shell, the upper end of said arciform bending plate cooperating with a compressible elastic return element during leaning forward movements.

Abstract: The invention relates to a ski boot of the type comprising a shell, at least one spoiler and clamping means constituted by a lever, a clamping member, a toothed piece designed to cooperate with said clamping member, and whereinthe toothed piece is housed between two parallel side walls molded with the boot, and defining between them an open chamber on the edge of the spoiler or of the shell, and the height of which substantially coincides with the height of the toothed piece;and the end of said chamber:is, on the one hand, extended at the top by a streamlined structure which is progressively joined to the front of the spoiler or of the shell;and on the other hand, comprises a split part, perpendicular to the walls and situated plumb with the beginning of said streamlined structure.

Abstract: The present invention relates to a ski boot made of plastics material comprising a shell adapted to receive the foot, whereinthe rear part of the shell presents a rigid, flexible portion which follows the shape of the bottom of the rear face of the leg;and the rear of the boot presents a means adapted to push this rigid, flexible portion towards the front of the shell.

Abstract: A ski boot consisting of a shell to receive the foot and of a rear collar hinging on the shell to snugly fit against the leg, the shell comprising on its rear side a raised molding pointing outward for the purpose of limiting the displacement of the collar on the shell, characterized in thatthe collar at its lower part comprises a raised molding parallel to the raised molding on the shell but pointing into the boot and capable of resting on said molding on the shell, andthe shell comprises at its rear part a compressible element capable of resting on and cooperating with said raised molding of the collar when said collar moves on the shell.