I have quite a few of orthaheel shoes and I love them and give most of them 5 stars.  Vionics are the best just limited in color options.  So I needed a pair of gray ones.  Difficult color to find with a great arch support.  However with this shoe if my foot sweats just a little I have a hard time keeping the shoe on.  The worst part of it, my foot slide back from the foot and sideways.  I found I'm constantly reaching down shoving my foot to the front of the shoe and tightening down hard on the toe strap.  It will eventually stretch and I won't be able to adjust anymore and finally I won't wear them.  Very dissappointed.  I wear an eight in this shoe these are definetly a bit smaller, makes my feet look fat or maybe its because I have to tighten the strap until my piggies swell.  I may get a summer out of these shoes?  We will see