The Therapeutica Spinal Back Support has been ergonomically designed to conform to the natural contours of your spine while supporting your spine properly in order to maintain good back health and prevent long-term back pain. Our spinal support promotes correct posture to alleviate the increased stress your spine is under in various seated positions. It plays a vital role in improving the health of your back which affect's daily practices and functionality while allowing freedom of movement and reducing back pain and fatigue. It's custom manufactured foam is molded around a polypropylene insert and then covered with a fitted fabric cover. It's unique but the simple fastening system allows easy fastening to any kind of seating, providing therapy while you sit and work in all settings.Sizing is important for optimal results.