If it will help any, I normally wear a 6.5 wide shoe. I had originally gotten a size 40 Sidi Bullets, which were not very comfortable - the tongue was hitting me in my toes and instep. I was able to exchange them (and pay the difference) for a pair of 39.5 Sidi Dominators, and I couldn't be happier! I also have a problem with bunions and other assorted foot problems, and I definitely have enough room in the toe box.

Jo