| 摘要 |
A cushioned sole for the foot which is hollow and resilient the interior having contained a fluid or other flowable material, such as sand and the like, the sole having for a principal purpose the affording of maximum comfort for the wearer. Small air valves are provided to allow the sole to breathe the degree of which is subject to control by slide covers. The sole is composed of discrete parts each specially shaped to prevent back sliding of the foot when walking on loose sand or climbing dirt trails. A second, flattened sole may be attached to the first sole for more ordinary usage of the subject foot wear.
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