I ordered these shoes in a size 8.5 based on my prior Sketchers purchases. However, I believe this shoe runs true to size so I could have purchased the size that I normally buy.  I can not rate the shoes on comfort or arch support because the shoes were too big to wear and I had to return them. Since I have a narrow heel, I probably would not have been able to wear this shoe in my size anyway because my normal size is 7.5 but I buy 8s in order to have toe room and a slip-on shoe will sometimes slip off my heel unless it's a a narrow width or a tie up shoe. It's a very good looking shoe and I really tried to make it work but I had to return it in the end.  will go to a Sketchers store to try this shoe on to find out if I can wear a smaller size.