A rest or support for the back.
- The Infinitely Adjustable Umbrella Sports Chair has an umbrella that attaches to either side of the backrest and can both rotate and tilt in any direction.
- The sofa slides forward on a specially designed wheel system so the backrest slips down seat level and makes the couch width nearly twice as wide.
- This chair features a one-piece, frame free backrest that has 567 geometric cut out shapes that create three flex zones.
- There are also Amish upholstered chairs that have fabric or leather covering the seat and backrest of the chair.
- A recumbent exercise bike allows you to sit back on a bucket seat with a backrest supporting your lower back.