Ltpgtltstronggtsit up straight with the 66ft d roll cushionltstronggtampnbspampnbspampnbspampnbspampnbspampnbspltpgtr ltpgtwhen we slump in our chairs the spineamprsquos natural amplsquosamprsquo shaped curve is reversed and the muscles at the bottom of the back become stretched which can cause uncomfortable neck and back painltpgtr ltpgtthe 66fit d shaped lumbar roll is uniquely shaped to fit into the small of the back to correct poor