I have had 3 Sanuks so far, they have all been the basic flip flop style. I can wear them all day and walk in them and my feet will never hurt.  I wore another MAJOR designer brand flip flops (for vanity's sake) and walked in them for only 30 minutes before my feet were killing me.  I went back home and put on my basic Sanuks and my feet were happy again. I will agree they are the most comfortable flip flops (so far) that I have owned.  And now, with the 2 inch heels, I can look stylish while being in great comfort.