CN/EU 38= US 6.0= Foot Length 240mm. CN/EU 39= US 6.5= Foot Length 245mm. CN/EU 40= US 7.0= Foot Length 250mm. CN/EU 41= US 8.0= Foot Length 255mm. CN/EU 42= US 8.5= Foot Length 260mm. CN/EU 43= US 9.5= Foot Length 265mm.