ULTIMATE COPPER INFUSED: Copper Joe lumbar back braces are constructed with up to 88% copper content which we infuse directly into the nylon to help provide relief from back pain, lower back, lumbar pain, sciatica, tendonitis, stiff or sore muscles, tendons & joints, and more!.BACK COMPRESSION: Keep your back compressed with our ultra-comfortable brace that gives you the support you need while still allowing you to retain your full range of motion so that your muscles can continue to work and strengthen..STAY ACTIVE: Our lower back braces are designed and built to help you get the support you need for all day and all night activities. Commonly used for people suffering from back pain, lower back, lumbar pain, sciatica, tendonitis, stiff or sore muscles, tendons & joints, and more!.DAY + NIGHT COMFORT: Our ULTRA COPPER INFUSED comfortable fabric gives you support while still allowing you to retain your range of motion. Moisture wicking technology keeps you dry and helps prevent rashes and itchiness. With our high copper ions bound in the fibers, this will also help reduce garment odors. Maintain peak performance & full range of motion with Copper Joe!.MANUFACTURER’S WARRANTY: We're here to provide superior service. If you’re not happy after buying, simply contact Copper Joe. If we can't fix your problem, we'll give you 100% of your money back! We're that confident in the quality of our back brace. With a guarantee like that, why look anywhere else?