I went to the store and they measured my sons shoe size. I ordered based on their size recommendation but they are toe large for him. This shoe does come larger than normal. The shoe itself is really nice but I need to wait until he grows into them. I had to order online since my son is a big boy and usually his shoes are special order. I got a 9 extra wide. I gave it a 5 star because i like the sandal despite it being larger than expected