These shoes were very cute and seemed to have a comfy yet supportive insole, so I was really disappointed that they didn't fit. Definitely run narrow. Because shoe sizes can vary, I usually wear between a 6 and a 7. They were a lightning deal, so I tried ordering a 6.5 M and a 7 M. Both were way too narrow to be comfortable, and the 7 left too much room in the toe. If the 6.5 had been wider it would have been perfect. I would recommend ordering the wide version (C/D) of your size if you usually order medium (M) width shoes. If these go on sale again I'm definitely going to try a 6.5 C/D.