Fits pretty true to size, you could get away with a half size down, they don't run small.  The back zip is a little sticky and there's a trick to it.  The only thing I wish is that there were some way to adjust the ankle strap.  It's a little loose.  The upside is that the straps won't cut into your ankle when you walk.  Straps are wide enough across the toes so that they cover the toe enough so that they don't stick out the side.

The only odd thing about the "white" synthetic material is that it is more of a mottled light gray and is not snow white.  They should have called the shoe gray, not white.