These Mary Janes are over-sized!! They are about 1/2 to 1 size too large!! I take an 8 1/2 and probably could size down to a 7 1/2, but I am returning them as I don't feel like paying return postage twice !!! Also, if you tighten the strap to get a better fit the sneaker gaps,you are better off sizing down.The appearance of the sneaker is just okay, kind of geeky looking.