I don't have any, yet, but, I want a couple. I like the ones with the little metal clasp, they seem to fit me better. Unless I get the ones that are made for kids, they all seem to be too big. I had a livestrong one for a few weeks, but, it was awkward to wear, and, it broke, anyway. I wish I could remember where this girl had gotten her AIDS one, it was pink with a little metal clasp.