Abstract: A ski has a filling core, for example, polyurethane foam, a shell forming an upper face and lateral faces of the ski and a lower face including longitudinal metal edges and a central sliding sole. The ski has two longitudinal reinforcement elements which extend at least in the central part of the ski and are arranged on either side of the core. The two longitudinal reinforcement elements contact the core and at least part of the internal surface of the lateral faces of the ski. Each reinforcement element includes a lower face which extends mainly over a width of a corresponding edge to provide support, and extends over at least a part of a height of the ski.

Abstract: A device to mount a release binding on a ski has a pair of blocks which are independent of one another. The blocks are mounted on the upper surface of a ski and the bindings are mounted on the pair of blocks. A connector connects the pair of blocks. The connector is inextensible and is mounted on the pair of blocks such that when the ski is flexed the connector prohibits the spreading of the pair of blocks while permitting the pair of blocks to approach toward one another.

Abstract: A flexion control for a ski boot for controlling the resistance to the forward movement of the upper shell of the ski boot relative to the lower shell in which a band of variable elasticity along its length is adjustable transversely across the upper surface of the lower shell between a bumper carried by the lower end of the upper shell and a rigid surface formed in a lower shell.