I've ordered these in a 10, then a 9, and now a lovely 9.5. After two returns, I was SO excited to wear these...and was very quickly (and painfully) disappointed. Wore them for my 7 minute to walk to the train, and the back of them rubbed my achiles so badly, that when I got to my office, my achilles was pretty badly bleeding (yep, blood on the shoe too). We're talking a max of 15 minutes of walking in these flats, broken up by a 20 minute train ride in between walking. I'm hoping they will stretch out so I can wear them, as I really do like how they look.