| 摘要 |
This embodiment relates to athletic footwear devices, more particularly, athletic footwear, soles, insoles, inserts and slip-ons. They incorporate the use of natural or manmade materials therein, that are strategically produced for height, length and severe drop off shape (FIGS. 10, 10a). They are strategically placed at areas of the foot which will avail the user of the ability to enhance the Second-Class Lever of the feet. By engaging this lever, the fulcrum and the phalanges will increase their ability to walk or run faster, and jump higher. As another embodiment (FIGS. 12, 13a) the device is provided as an independent insert that is produced at the strategic height, length and shape and can be inserted into an existing footwear device. (FIGS. 14, 15a) An additional embodiment is directed to the form of a slip-on footwear device (FIG. 16). which can be worn on the foot and used independently, or first become attached to the foot and then inserted into an existing athletic footwear device (FIGS. 19, 20, 21).
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