Abstract: A ski with a binding in which elevated sections, project out from the ski-boot support plate in front and/or behind the binding attachment area.

Abstract: A ski with a core between a lower and upper strip layer over the entire length of the ski, with attached portions of lightweight material in front of and behind the ski boot support zone. The attached portions are glued to the upper strip layer. The ski is encased by a molded integral sheath of plastic material.

Abstract: The running surface of an Alpine ski has a front portion adjoining its tip, a rear portion, and an intervening middle portion supporting a binding, the three portions differing from one another in their profiling designed to exert a minimum guiding effect in the middle portion and a maximum guiding effect in the rear portion. The latter, therefore, has one or more longitudinal grooves whose combined cross-sectional area exceeds that of the groove or grooves of the front portion whereas the middle portion is grooved only slightly or not at all.

Abstract: A cross-country ski having at least one recess in the sliding surface for an interchangeable insert. One surface of the insert is advantageously self-adhesive and the other is preferably provided with a construction to prevent backward-sliding. Between the sliding sole and the lowest layer of the body of the ski an intermediate layer is provided, and the recesses for the insert extend into the intermediate layer whereby the insert is bonded to the intermediate layer.