I was very skeptical about paying $54.99 for a fit flop.  I read all the reviews and everyone was very positive about the sandal, so I gave it a try.  Well am I glad I did.  I had both knees replaced and now have back issues and walking was a chore.  Now I must say with the very supportive arch and cushioned heel in this sandal and the TOTAL COMFORT I am walking so much better and with less pain.  These sandals do not cure your back problems but they do relieve the pain when you are wearing them bearable.  I haven't taken them off since I bought them and I wear them EVERYWHERE.  I LOVE LOVE LOVE these sandals and they are worth EVERY penny.  You will not be disappointed if you buy these, in fact I'm going to buy another pair.  I usually read reviews on any item before I buy it and so far no review has let me down.  If you don't LOVE them you can always return them.  GO FOR IT !!!!!