I wear and ordered a 7-1/2, and they fit perfectly. I like that both straps are adjustable with Velcro, and find that I can leave the top strap as loose as I want, as long as I snug up the toe strap, and the sandals stay on my feet just fine. As a matter of fact, when, at first, I tightened the top strap a bit, I found that my heel worked itself against the back of the footbed, and suddenly they felt too small. Once I loosened that strap my foot rested in the proper position and the fit felt correct. My only criticism of this sandal is that, because the sole sort of extends out beyond the footbed - it's hard to describe this - when I look down at my feet in the sandals the sandals look really big. My husband says they look fine, but I still feel like they make my feet look big!