| 摘要 |
PROBLEM TO BE SOLVED: To provide a shoe interior material made of a water-proof, moisture- permeable material fit to the three-dimensional form of the arch of a foot to prevent a shoe sore or a blister caused by friction between the rear end of the heel and the sewing thread and to prevent cutting of the sewing thread and tearing of the shoe. SOLUTION: This shoe interior material A consists of an outer instep material A1 and an inner instep material A2, and a heel part material A3. The shank parts of the center joint edge 1 of the outer instep material A1 and the center joint edge 21 of the inner instep material A2 are curved toward the outer instep side and toward the inner instep side respectively, and the center joint edge 1 and the center joint edge 21 are sewn to each other. Therefore, the sole of the shoe inner material A is formed three-dimensionally corresponding to the form of the shank of the shoe, so that the sole will be fit to the arch of a foot. Also, the heel part material A3 is formed to cover the heel side part 35 on the outer instep side, the heel rear part 36 and the heel side part on the inner instep side to do away with a sewing thread on the heel rear end part rubbing the heel of a foot.
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