The Nike Cortez will always be a stylish and classic look in a world fool of increasingly hideous and over-priced sneakers. If you are a regular Nike customer, you should stick with your normal size, maybe half a size bigger. If you usually wear Sperrys or other shoes with no sole, you might want to order a full size up. I usually wear a 10 in Nike's and I got a 10.5. Had a bit of room but overall the shoes were very comfortable. Love the look. Can wear these shoes with pretty much anything. Happily surprised with the extra white laces that came with the black and white shoe. If you are a classy dresser, these are a MUST HAVE! Shoes shipped as expected and came in perfect condition but if this company wants to make me a lifelong customer, they should offer free return shipping for ordering the wrong size.