MIDSOLE OF SPORTING SHOES

PROBLEM TO BE SOLVED: To provide a midsole structure of sporting shoes which allows the surer prevention of rocking at the time of a competition and the improvement in a cushion property. SOLUTION: The midsole structure of the sporting shoes is provided with an upper midsole 3a and lower midsole 3b composed of soft elastic members and a corrugated sheet 4 arranged with heel parts (4a) which are corrugated portions of these heel portions. The corrugated sheet 4 is provided with rising wall parts 6 (7, 8) extending upward and downward on the inner and outer flanks of the upper midsole 3a and the lower midsole 3b. In such a case, the rocking of the heel portions of the midsole 3 may be surely prevented by the rising wall parts 6 (7, 8) of the corrugated sheet 4 and the walking stability of the shoes may be additionally improved.