30-31 [suitable for foot length 17]]

32-33 [suitable for foot length 18]]

34-35 [suitable for foot length 19]]

36-37 [suitable for wearing 35-36 at ordinary times]]

38-39 [suitable for wearing 37/38 at ordinary times]]

40-41 [suitable for wearing 39/40]]]]

The shoes are a little small, and the size is 2 for fat feet