How to choose correct size? 1.Measure your foot length as the below photo. 2.According to your FOOT LENGTH to choose the correct size. 3.Please do not measure the insole length,It is different from the foot length. *** Size chart *** Foot Length 240mm = EU Size38 Foot Length 245mm = EU Size39 Foot Length 250mm = EU Size40 Foot Length 255mm = EU Size41 Foot Length 260mm = EU Size42 Foot Length 265mm = EU Size43 Foot Length 270mm = EU Size44 Foot Length 275mm = EU Size45 Foot Length 280mm = EU Size46 Note:Due to manual mearsurement, kindly allow the 0-2cm difference please, thanks! Remark: If your foot is wider or higher, we advise you to choose the bigger one size please. >>>>Product show<<<<