This is now my 5th pair of FitFlops.  I doubt they actually help make you "fit", but they have always been the most comfortable sandals/shoes/slippers that I have.  I wear these everywhere!  They are not just for slippers around the house.  I had a pair of Sketchers similar to these that I liked, but finally wore them out.  I was happy to find these and try them, love them.  I had back surgery 9 months ago and it's hard for me to find shoes/sandals/slippers that I can wear for longer periods without irritating my back.  Will always be a fan!