QD Back Support 3mmThe 3mm thick QD Back Support from Rehband provides compression, warmth and support for the lower back during heavy activities. This combination prevents overexertion and overloading of the back muscles and spine, which can cause lower back pain. It protects your back from chronic and severe pain, inflammation as well as wear and tear injuries. The body wrapping compression also improves your posture. This back brace is ideal for weightlifting,