Kindly please read the description before choosing a correct size to avoid unnecessary trouble. <br />Size 7-9 is US size. Size 39-43 is EUR size. <br />For Example， you wear size US size 7， this shoes you need to choose US size 7.5. Because this shoes is smaller one size. Large wide foot choose one more size again <br />US 7 = EUR 39 = 245mm = 9.63" <br />US 7.5 = EUR 40 = 250mm = 9.83" <br />US 8 = EUR 41 = 255mm = 10.03" <br />US 8.5 = EUR 42 = 260mm = 10.23" <br />US 9 = EUR 43 = 265mm = 10.43"