I wear a ladies 10, and after ordering some adorable saltwater sandals for my daughter I wanted some too!  I ordered the ladies 10, but they were waaaaay too short.  My heel hung off the back a little, and my toes were right at the end.  I was tempted to get the next size up, because they are super cute, nice quality leather, but decided that they weren't very comfortable between my toes anyway.  They probably would have broken in, though--I've heard that if you get them wet and wear them, they soften up and conform to your feet.  I definately would have kept them if they hadn't been too short. Cute shoes, but I think I'll pass on the exchange, just in case.