| 摘要 |
Tennis shoes, comprising soles (5) having bases (7) and a large number of horizontal reinforcement crests (9), the horizontal reinforcement crests (9) further comprising ground-contact surfaces (11), toe side wall surfaces (13), and heel side wall surfaces (15), wherein the cross sectional shape of the horizontal reinforcement crests (9) is asymmetric, the tilted angle (&thetas;b) of the heel side wall surfaces (15) is larger than the tilted angle (&thetas;a) of the toe side wall surfaces (13), a difference therebetween (&thetas;b - &thetas;a) is 10 to 60 DEG , the height (H) of the horizontal reinforcement crests (9) is 1 to 8 mm, the ratio (L2/L1) of the distance (L2) of the ground-contact surfaces (11) to a distance (L1) of a boundary part between the bases (7) and the horizontal reinforcement crests (9) is 0.2 to 0.8, and the ratio ( mu a/ mu b) of the coefficient of friction ( mu a) of a bottom surface in toe direction to the coefficient of friction ( mu b) in heel direction is 0.3 to 0.9. <IMAGE>
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