FYI - there was no initial option on the sizing to comment.  So, I am commenting here.  THANKS TO OTHER REVIEWERS -- I knew to BUY A SIZE LARGER (as is a size off from the listings) . Also, I ALMOST returned these, as when I put it on, it clamped my toes so tightly I thought for sure would never work, and planned to re-box them in the morning.  Thankfully i wore them 2x in the middle of the night to run an errand :); and, in the morning, when I made an errand, they seemed now to actually fit my feet!  They DO clamp around the toes, but, since it is a loose heel, it kind of keeps my feet in there.  I would not be able to wear these for hours as I need a wide toe for shoe, but, they work out very nicely, and are DARN ATTRACTIVE!  LOVE THE HARD BOTTOM!!!!