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.
The club style recumbent bike, however, comes with an extra tall backrest, padded for additional comfort.
Backrests-Choose a chair that has an ample backrest to support your body.
Nearly all recumbent bikes come with a bucket seat and short backrest.
The arch of your lower back should be supported by the chair backrest.