Since I have a narrow foot, I was very happy to hear that these FitFlops actually run narrow.  As usual, the delivery was great - the next day!!  I loved the way they fit and wore them around the house to get used to the strap between the toes (I normally don't wear flip flops because of the strap between the toes).  After several days of just wearing them around the house, I got terrible cramps in my toes.  I believe that this is because you have to curl your toes differently than with a regular sandal.  I think if you ARE used to wearing regular "flip flops", you will love these.  If not, you may have the same problem I had and the pain lasted three days even with regular sandals and sneakers.