| 摘要 |
An improved shoe includes an energy return heel mechanism in the heel portion of the shoe upper. The energy return heel mechanism comprises a spring lever pivotally mounted against a fulcrum. The position of the spring lever and fulcrum with respect to each other is adjustable so as to provide adjustability in the spring force. The shoe may also include a variable support insole. The sole extends outwardly beyond the shoe upper around the entire periphery of the shoe upper. The top of the heel portion is rolled backwardly and the tongue is rolled upwardly and outwardly. The shoe may come with different thickness and/or different weight soles.
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