I own 3 pairs of Bernie Mev shoes in various styles. I mainly wear a size 9 but I can wear both a 39 and 40 in most Bernies. I ordered these in a 40 and they were a bit small. Like others have mentioned, the ring on these digs uncomfortably into your foot. This probably improves with wear since the elastic in these shoes tends to loosen with time but I didn't keep them long enough to find out.