I have own the double layer , leather Rainbow flip flop for about 2 year now and they be , without a doubt , the best pair of sandal I have ever own ! incredibly comfortable , even when wear for long distance , great support , and extremely durable . in the highly unlikely event that they do break due to wear and tear , Rainbow provide a replacement free of charge . the \* only \* downside - and it be indeed a minor one - be that they be somewhat stiff and uncomfortable for the first 1-2 week , as you break they in . once break in they mold to fit the contours\/shape of you foot . highly recommend , particularly for those of we in state like Florida and California who live in flip flop year round !