The CorFit Advantage AP with firm anterior panel and posterior foam panel provides targeted compression to the lumbar and sacral regions to ease lower back pain and discomfort. Opposing, independent pulls use a mechanical advantage tensioning system to leverage support and compression to the lumbar and sacral regions. A removable posterior panel with 25? arc provides additional comfort and compression on lumbar region. Additionally, a removable anterior panel offers additional abdominal support and compression. Our patented, proportional sizing system provides a proper fit in height and length to accommodate various body sizes. Flexible internal stays provide support and stability as well as help prevent the sides from rolling. Easy closure assists provide additional leverage with minimal effort for extra compression and a secure fit; ideal for users with arthritis or weakened muscles. The soft elastic CorEdge finish on top and bottom edges offers added comfort and flexibility. The anatomical form contours to the natural curves of the waist and hips for comfort.