Might as well add my $.02 worth.  I totally agree with all of the reviewers who said this shoe runs small.  It does!  Totally too small.  I wear a pretty solid 9.5M, ordered a 10M and damn, I bet an 11M would have fit!  This shoe is super light weight and very pretty for a running shoe.  I started my return the day I got them.  No can do!