Chiro Plus Ergo Posture Chair Black With Arms & HeadrestChiro Plus Ergo Posture Chair Black With Arms & Headrest More work hours are lost through back pain and injuries than any other reason. And the number of people reporting back issues is rising rapidly. One reason is poor seating posture at work, especially amongst office personnel. Chiro High Back and Medium Back posture seating are fully functional contoured chairs. They are feature rich and highly functional to ensure they can be adjusted to support