I read the reviews that these ran small, so I went a half size bigger and got a 9 instead of an 8.5. For me, these were too big. There was a noticeably large gap in between my heel and the back of the shoe which made me self-conscious and uncomfortable. I tried buying heel as well as foot insoles to go inside the shoe, but they only slightly helped. The shoes were still very uncomfortable and made me miserable by the end of the night. If you're a big heel lover, than you may have better luck with these than I did.