I really wanted to like these flip flops... I ordered one pair in my usual size 7, and when I tried them, my feet slid around under the arch part of the thong tops.  I returned them and ordered another pair.  The second pair did the same thing.  Note that the length of the fit flop is just right, and the sole portion conforms nicely to my feet.  It's just that they appear to be made for someone with extremely well-endowed tops of their feet!  I can fit two fingers between the top of my foot and the strap on my arch.  This extra room makes the shoes difficult to walk around in for any length of time, or even to drive in (your feet slip around too much).  Since purchasing these online, I found the same style fit flop, but in a different color, in a local store--when I tried these on in size 7, they were MUCH more snug and better-fitting!  So, I am left wondering if the mustard yellow color, while lovely,  may be made defectively??  I wish I could exchange them for a snugger-fitting pair, but I have already worn them outside. (I don't want to return them, as I got a great price-- thirty five dollars; and they are now around fifty-five dollars.