(Manual measurement error within the normal range of about 0.5cm)
Length corresponding size as follows (amounts length uppers):
35 yards inside the shoe length: 22.5cm
36 yards inside the shoe length: 23cm
37 yards inside the shoe length: 23.5cm
38 yards inside the shoe length: 24cm
39 yards inside the shoe length: 24.5cm
Very uncertain size, you can use a ruler to measure what people usually wear flip-flops before making a decision! We can only give advice or soles of a length to give you a reference (due to manual measurement, marking the end of a long up and down a few millimeters to allow error), because everyone's feet are different, it is recommended not guaranteed given the right of every individual feet.