Size Adjustment Method: If there is an insole on the shoes, take out the insole and cut it to fit it. If the insole cannot be removed, cut it slightly by bit, and try putting it into the shoes to fit the size. Size: S: 7.5 - 9.3 inches (19.0 - 23.5 cm); M: 9.3 - 10.6 inches (23.5 - 27.0 cm); L: 10.6 - 11.8 inches (27.0 - 30.0 cm); The toe part is approximately 0.5 inches (0.5 cm), and the middle of the heel).