I normally ware a 7. I have worn  Reefs Fanning and Slap for over 10 years. They are the most comfortable sandals.  I am on my feet for over 12 hours a day. For me these are and have been true to size. I don't like to have a lot of extra space length wise from my toes. When you get Reefs, at first they are tight but they will stretch in the width thats normal.