The ProFlex 1051 Mesh Back Support Brace is designed to remind workers of proper lifting techniques while also enhancing the body's intra-abdominal pressure, moving the stress away from the spine. This back support features breathable polyester mesh and a contoured, ventilated lumbar pad for light compression and support to help reduce strain. Not only does the polyester mesh allow for maximum airflow, but the material also absorbs sweat and wicks moisture away. SIZING To choo