US Size 4.5= EUR Size 34 = foot length 216-220mm<br />US Size 5.0= EUR Size 35 = foot length 221-225mm<br />US Size 6.0= EUR Size 36 = foot length 226-230mm<br />US Size 6.5= EUR Size 37 = foot length 231-235mm<br />US Size 7.5= EUR Size 38 = foot length 236-240mm<br />US Size 8.0= EUR Size 39 = foot length 241-245mm<br />US Size 8.5= EUR Size 40 = foot length 246-250mm<br />US Size 9.0= EUR Size 41 = foot length 251-255mm<br />US Size 9.5= EUR Size 42 = foot length 256-260mm<br />US Size 10.0= EUR Size 43 = foot length 261-265mm