These are small for their size. I would have returned them for a half size larger, but I wore them around the house so they were not NEW any more. a half size too small is not a good thing in a running shoe. and if you run in a sandy dusty environment, the sand and dust penetrates the shoe and it gets dirty inside. I think these would be good shoes for somebody who did not have to run in fine sand and if the fit were correct. I do not normally have any problems with shoe sizes when I buy shoes on line.