I have chosen number 10, which is supposed to be EU 44. But it is way too small. I gave it to my girlfriend, she normally wears 39. She says they are just a little bit big for her, which means, in reality, it might be a 40-41 or so. On the other hand, the quality of the slippers is stunning, well done and the soal is a proper one, feel comfortable, and won't feel like walking on the floors like others.
Item arrived in good order. The fit and finish is excellent. Very happy. No issues.