Welcome to my store! I wish you have a happy online shopping! <br /><br />1，Note Our size is not standard US size， and it is only equal to foot length! <br />2，The size you select is USA size when you make order，NOT UK SIZE!!! <br /><br />US5.5=EU38=240mm(bare feet length)<br />US6.0=EU39=245mm<br />US7.0=EU40=250mm<br />US7.5=EU41=255mm<br />US8.5=EU42=260mm<br />US9.0=EU43=265mm<br />US10.0=EU44=270mm<br />US10.5=EU45=280mm<br />US11.0=EU46=285mm<br />US11.5=EU47=290mm<br />US12.0=EU48=300mm