OK...these flip-flops are awesome.  Got them today and have not taken them off since!  They are making my feet feel good after a hard day at work.  I feel as if they were molded to fit my feet.  I have a pair of UGGs and 2 pair of Born flip-flops and these Columbias are by far the most comfortable.  Not only are they comfortable, they look nice, too.  I agree with one of the other reviewers...order a size up if you are debating between sizes.  I usually wear a 10 or 10 1/2 and I ordered an 11...they fit perfect!  I am definately going to wait for the other colors to go on sale so I can get more.  Thanks goodness I live in Southern California do I don't need to put them in my closet for the winter!