To provide an insole 2 suitable for sports.
The insole 2 includes a base 4 and a raised part 6. The base 4 is planar and more or less flat while the raised part 6 is continuous to this base 4 in the periphery of the base 4 and extended upward from the base 4. The raised part 6 includes a first wall 8, second wall 10, third wall 12, fourth wall 14, fifth wall 16, and sixth wall 18. The average height Ha1 of the first wall 8 is greater than the average height Ha2 of the second wall 10, and the difference (Ha1-Ha2) is 2 mm and 15 mm. The average height Ha3 of the third wall 12 is greater than the average height Ha4 of the fourth wall 14, and the difference (Ha3-Ha4) is 1 mm and 10 mm.
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