| 摘要 |
A sole of a footwear is provided herein which may be designed to provide multifunctions suitable for particular sports. The sole may include a bladder which extends an entire length of a wearer's foot. The bladder may be pressurized with fluid for absorbing impact forces (e.g., landing impact forces, running impact forces, etc.). To prevent the bladder from having a balloon configuration, support columns may be attached to an upper layer and a lower layer of the bladder to maintain the spacing between the upper and lower layers. The lower layer of the bladder may be flat for optimizing the sole for skateboarding and other activity.
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