| 摘要 |
<p>An athletic shoe includes a spring (35) preferably in the midsole (22) of the shoe. The spring (35) is preferably generally oval-shaped and includes convex top and bottom walls (37, 38) and a laterally extending opening (41). The spring preferably is moulded from high tensile material such as graphite fibres and resin, kevlar fibres and resin, glass fibres and resin, or ceramic materials.</p> |
