| 摘要 |
An edge-folded steel head combined shoe insole has a groove defined in a fro nt end and two sides of the insole. The insole is also provided with an inner welt downwardly extended peripherally thereunder, and is thickened gradually from a rear end to a front end. The depth of the groove is shorter than the thickness of the inner welt so that a folded edge of the steel head can be inserted in the groove. This avoids conflict of a sewing needle to the folded edge of the steel head when sewing the vamp onto the inner welt of the insole, thereby the steel head is well supported to have shoe's strength heightened.
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