I wanted these shoes to work because I travel ahead that will require quite a bit more walking than usual.  Bizarrely, the left show fit perfectly but my heel kept slipping out of the right one. The shoe size was the same in both shoes, but the fit was not comparable.  It is not a case of my feet being different sizes; This kind of problem has never happened before with any pair of shoes, including several pairs of Rockport shoes.  I was very surprised that there was this problem with these shoes since the various pairs of Rockport shoes I have purchased over the years have fit perfectly.