Ergonomic to the core, Aeron was designed for a wide range of body types, thanks to the extensive research from designers Bill Stumpf and Don Chadwick nearly 30 years ago. Its launch was pioneering in the office furniture industry-and it still is, thanks to updated research and material innovation, including the addition of ocean-bound plastic to the body of the chair. We’ve always known Aeron is good for our bodies-now it’s just as good for our environment too. Aeron Chair-B Size-Height Adjustable Arms. Height: 36.8″-41.1″. Depth: 27.5″-28.3″. Seat Height: 14.8″-22.8″. Arm Height: 7.5″-11.5″.