Fit Flops are the best.  The only sandals I can wear because they come with good arch support.  I am excited how they come in so many different designs now.  Long-lasting. The firm soles soften over time but do not lose their comfort.  The soles can be washed with water but I try not to get the uppers wet.  The only failure I have had is the thing between the toes came out.  I paid a cobbler to fit it and they're still going strong!