Welcome to our store~ Size info: US size 5 =UK size 3 =EU size 35= 225 mm (foot Length) US size 6 =UK size 3.5=EU size 36= 230 mm (foot Length) US size 6.5=UK size 4 =EU size 37= 235 mm (foot Length) US size 7.5=UK size 5 =EU size 38= 240 mm (foot Length) US size 8.5=UK size 6 =EU size 39= 245 mm (foot Length) US size 9 =UK size 6.5=EU size 40= 250 mm (foot Length) US size 9.5=UK size 7 =EU size 41= 255 mm (foot Length) US size 10 =UK size 7.5=EU size 42= 260 mm (foot Length) US size 11 =UK size 8 =EU size 43= 265 mm (foot Length) Tips: Please pay much attention to the difference of the size to choose the most suitable and comfortable shoes.Due to different methods of measure,the error is allowed normally in 0.5 cm-1 cm.If your feet are fat or wide, pls get one bigger size for this shoes. Wish you a happy shopping~