These are the most comfortable shoes ever!!!!!!!! This is actually my second pair.  I would recommend going with this open back style versus the full shoe/closed back.  I had that style on my first pair and wound up just pushing the back down and stepping on it.  Believe me...all your ever going to want to do is slip these babies on and it's a lot easier with an open back.  I'm shocked you don't see more people wearing these, and I get many "raised eyebrow", what are those questions from people. They are a bit on the weird/strange side as far as fashion goes....but they are so awesome!  Oh, I would also go with a 1/2 size bigger when ordering.