Ergodyne ProFlex 1600 Standard Elastic Back Support BraceThe ProFlex 1600 Standard Elastic Back Support is designed to remind workers of proper lifting techniques while also enhancing the bodys intra abdominal pressure, moving the stress away from the spine for back pain relief. Features an all elastic 9 inch body for extra firm support. To choose your size, use a flexible measuring tape and find the circumference around your body at your belly button. The support should fit snugly around your hips with the