I usually wear size 10. I ordered a 10 in these and they fit when I first tried them on, but after an hour of wearing them, they were falling off of my feet. The next time I ordered a size 9, because I really like the shoes. They were very tight on my toes, but I thought they'd be perfect once they stretched out.  Well, no, they're huge. They have stretched after wearing once and now fall off my feet.