These shoes are designed for narrow and standard foot width , please refer to the size table and choose the size according to your foot length. If your feet are fat or wide , please choose next larger size. Size 8 US = Foot Length Rang 9.71"- 9.98" For example : your foot length is between 9.71"- 9.98" , please select size 8 US = 39 EU , ( Fat or wide feet , please select size 9 US = 40 EU ) If the size that you measured is more different from your daily shoe size ,please feel free to get in touch with us,we are here for you in 12 hours .