I usually wear a 7M. Brooks ghost sz 7 fits perfect every time. This shoe is tighter in the toe box - even a bit shorter in the toe box. At first I wished I would have went up 1/2 size but now that I'm breaking them in I think they will be ok.  The heal was tight and rubbing at first too but after wearing them one full day they seemed to loosen up a bit. They are a very light weight shoe and seem to be well made; we'll see how long they last. Although, I will probably go back to brooks ghost next time I need shoes so I can void the break-in process.