I wear an 11 1/2 and after reading other reviews decided on 11 to avoid tripping over the extra long toe. I didn't take into account that I usually wear loose fit as well. The straps are tight where they meet the shoes. I would advise if you wear a size and a half width. Increase the size. Also, which is my fault, the sandals are comfortable and seem to hold up to anything I put on them.