| 摘要 |
According to the invention, a ski is provided. The ski may be a longitudinal member having lengthwise edges, a convex base, and a first and second pair of undulations. Each lengthwise edge may have a sidecut portion, where the longitudinal member is thinner near a middle portion of the sidecut portion than at an end of the sidecut portion. The convex base, in an un-deformed state, may have lengthwise edges which are elevated compared to a bottom-most portion of the convex base. The first pair of undulations may be located at a first end of the sidecut portion, one undulation of the first pair per lengthwise edge. The second pair of undulations may be located at a second end of the sidecut portion, one undulation of the second pair per lengthwise edge. The undulations may be a downward depression of the base compared to proximate portions of the convex base.
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