A friend told me about Coobie.  I bought a white one and loved it.  My major peeve is that straps don't stay up.  These straps stay up!  When I am wearing it, I don't think about it at all! Then, I bought black.  Then, I bought the package of 4.  I am a senior.  I now have a lifetime supply!  I have enough to have extra at the beach house.