These are the most comfortable flip flops ever!  I live in them, working daily on a concrete floor with no back pain!  They offer wonderful cushioning.  And they are amazingly durable; I bought my first pair years ago and they lasted several years with continual, nearly exclusive 3-season use.  And in the winter, I even wear them with socks when I am home.  I have since ordered multiple pairs, including in some other colors.  One of my daughters is also now hooked on these flip flops

They are quite easy to clean; just rinse off.
Great flip flops.  Once you wear them you won't want to wear anything else (on your feet!)