I ordered the size 11-11.5. The adjustable toe and ankle strap mean that this sandal will fit a wider foot as opposed to the ones that don't have an adjustable toe. They look very nice and Im sure we will get lots of use out of them. I had purchased this brand in another style previously and was very happy. I like the durability and nonslip sole. The old pair was easily cleaned also. I used baking soda with dawn and peroxide and scrubbed the straps with a toothbrush and they were very white again.