| 摘要 |
A spring cushioned shoe insert is disclosed. The sole insert includes an insert that has a first wave spring disposed within a vacuity of the heel region and a second wave spring disposed within a vacuity of the toe region. The springs are, e.g., wave springs that extend to the upper and lower boundaries of the spring enclosure. In one embodiment of the present invention, a fluid flow passageway facilitates the movement of air from the heel to toe regions of the insert. In a second embodiment, the wave springs are fully contained within encapsulating enclosures.
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