| 摘要 |
PROBLEM TO BE SOLVED: To provide functional bottom wear reduced in feeling of pressure or stiff feeling which a wearer feels when taking bending exercise for his (her) feet. SOLUTION: This functional bottom wear comprises at least two pieces of front body part and at least two pieces of back body part; wherein an extension rate in the lengthwise direction of the back body part is 5-40% larger than that in the lengthwise direction of the front body part.
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