Hi, Dear value customs! We advising you can choose size according your foot length in our size table .
For example, If your foot length (Heel to Toe) is 270mm, please choose size 10=44 in this model.
Fit for foot length 240mm is Size 6 =38
Fit for foot length 245mm is Size 6.5 =39
Fit for foot length 250mm is Size 7 =40
Fit for foot length 255mm is Size 8 =41
Fit for foot length 260mm is Size 8.5 =42
Fit for foot length 265mm is Size 9.5 =43
Fit for foot length 270mm is Size 10 =44
Fit for foot length 275mm is Size 11 =45
Fit for foot length 280mm is Size 12 =46
Fit for foot length 285mm is Size 13 =47