I read the reviews on this style of fitflop and even though I had a pair of the original Walkstars in a size 10, I ordered a size 9. Well, it was too small. The tags advise you to take 20-30 brisk steps in the sandal and if your heel slides off the back of the sandal or to the right or left at all, you need to go up a size. All of these sandals seem to be made for long toes, as the length in front of my toes is almost as long in the size 9 as my size 10's. I am therefore exchanging the 9's for 10s, as the 9's are too small. I do have wide feet although I can wear normal width shoes with no problems, so I don't know if that's why they are more true to size for me. It might be a good idea to find them in a store first and walk around the store in them a bit and then order them here - as they are usually cheaper on Amazon with more colors and free shipping.

As far as the fit part goes, I don't really know yet, I ordered them based on reviews from people who have back and leg problems and have reported no pain when using these sandals. As a person with sciatica and almost no cartilage in my arthritic left knee, these are so comfortable I can walk three times as far with no pain as is any other of my supposedly "comfortable shoes". If you care about the fit part, they may work, but if you are looking for comfortable shoes because of back or knee problems, I could not recommend these sandals highly enough!