features a soft plastic back that can curve freely when people recline to create a very comfortable lumbar and back support. Plastic back is vented for breathability. Height-adjustable arms have soft polyurethane pads for added comfort. Other functions include pneumatic seat-height adjustment, 360-degree swivel, tilt, tilt lock and tension.
80% recycled aluminum, designed to last 150 years. http://en.wikipedia.org/wiki/Emeco_1006 http://www.emeco.net/product/navychair.html