Back to the basics. People loved our original Edge Series Ion Bracelets so much that we've brought them back....with a few enhancements of course. We've added the duotone look and flush lettering to make them look great for longer. Edge LTE Ion Bracelets feature Ion Technology. They are made from a comfortable, surgical grade silicone that has been infused with natural minerals that work together to produce essential negative ions. Many people report waking up feeling more refreshed, feeling better overall, and having more energy.