Specification: Foot length 22cm=Size 36-37=Fit for 35-36 Foot length 23cm=Size 38-39=Fit for 36-37 Foot length 24cm=Size 40-41=Fit for 39-40 1.The size is small for Asian sizes, it is recommended to choose 1-2 sizes larger when purchasing. 2.Due to the difference between dilferent monitors, thepicture may notreflect the actual color of the item. 3. For your comfort wearing, Please choose thesize according to the foot length data.Stand straight, the length of the toes and the heel is the foot length 3. The length of the left and right feet will be slightly different, please measure a large amount. 4. lf the feet are thick and wide, it is recommended to choose one size larger 5.Due to different measuring tools, there may be an error of 1-3cm. Please refer to the received product as the standard