I own quite a few styles of Tevas and these are my favorites! The most comfortable flip flop ever and won't slip. I bought Reefs one time because I heard they were the same and they are not! I am back to Teva and won't ever buy Reefs again. Very comfortable- you can wear them all day. I have very flat feet so I need arch support but not too much or else my feet will hurt. Teva fits the bill perfectly.