I ordered a size larger, as indicated in reviews. The position of the separators does not allow your foot to go too much forward. There is a bit of space left in front of the foot, but the back fits comfortably and does not hang over the edge. I used them on vacations when I did quite bit of walking and they are very comfortable. They are not the best looking, but then I found that most comfortable shoes are rather hideous. The pretty ones hurt my feet just by looking at them.