Although I don't need a special shoe size, my feet are wideish, and I have found that among the popular flip flop brands Reefs run a tiny bit wider than average. I own five or so pairs and I've been very happy with all of them. Unfortunately, this model runs unusually narrow. I held them up to another pair of Reefs, same size, and they were at least a centimeter narrower. My feet weren't actually hanging off but it looked silly to have plenty of room around the toes and heel but absolutely none on the sides.