The ProFlex 1500 Weightlifting Style 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. The rigid foam structure and 900D foam lumbar pad offers maximum, firm support to help reduce back strain. Wide nylon closure on the front makes for easy adjustment and rubber track webbing in the interior prevents the belt from riding up. SIZING To choose your size,