Sanuks are the most comfy flip flops I own!  I have worn many brands and until I bought my first Sanuks about 6 years ago (on a fluke too, I just accidentally bought them because I was looking for flip flops), I thought all flip flops were created equal but I couldn't have been more wrong. They just feel so soft under your feet yet they give you just enough support so that your feet do not hurt. Seriously, you can walk on these all day (i.e. to the Fair) and be comfy.  I bought the Zebra and Cheetah design and they are both so cute.