Welcome to my store, in order to aviod your buying wrong size, please choose your size according to following steps:
1.Measuring your foot length.
2.Then use this shoe size chart to convert the length of your feet to a U.S. shoes size.
If you choose US 8.5. We will send size EUR 40. It comes with 25.0 cm insole length.
If you feet are fat, you may choose one size bigger.
International Shoes Size Chart
Foot length range=Size US=Size UK=Size EUR
Please allow 1~2mm differences