Comfortable anatomically correct sitting is essential for both good health and personal well being. Sitting improperly in the same position for extended periods of time can cause unnecessary backaches strain and excessive fatigue. Jobri prides itself in the design and manufacture of high quality back support products that are specifically structured to follow the natural shape of the human body. Developed in cooperation with doctors and the medical profession the BetterBack is recommended throughout the world by chiropractors physiotherapists doctors and thousands of satisfied users. Portable and foldable back support ergonomically designed to support proper neutral spine alignment and to promote correct posture while sitting. Strap allows unit to be secured around any chair or car seat. Supportive Polyurethane foam.