ProFlex 1600 Standard Elastic 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 for back pain relief. Flexible and breathable, the premium, all-elastic, 9" body delivers extra-firm support. Contoured, high-cut front panel delivers a comfortable fit. Stays are made of nonconductive polypropylene for long-lasting integrity. Adjustable, detachable suspenders keep brace in place. Rubber track webbing prevents riding up for a secure fit. Machine-washable brace fits waists from 34" to 38".