摘要 |
According to the principles of the first embodiment of the present invention, a midsole of a shoe comprising an integral midsole, an outer sole with transparent discs, a board last of tractable stiffness; a mechanical spring located within the midsole; and, an upper shoe body. The shoe being capable of providing line-of-sight viewing of the internally mounted contrivances for structural monitoring throughout the life of the shoe so as to improve durability, process of making comfort and acceptability.
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