Please choose size according to the foot length (from heel to toe )!
Different country different material have different size standard .
So our size ,Europe size may have some different with yours.
Pls measure foot length at first and then choose size correspondingly.
If your foot is wider or thicker, please choose one size larger.
If you are not sure of the correct size, welcome to contact us
24.1-24.5cm foot length =39 size
24.6-25cm foot length =40 size
25.1-25.5cm foot length =41 size
25.6-26cm foot length =42 size
26.1-26.5cm foot length=43size
26.6-27cm foot length=44sizi.