This Knoll chair, created by renowned designer Don Chadwick (he designed the iconic Herman Miller Aeron Chair), is in excellent condition. It was made in the USA. It’s outstanding, and it’s like no other. With this chair, Chadwick has made real his purist objectives in ergonomic design. Combined with the experience of Knoll, and on a par with its reputation, the Chadwick chair is a work of austere simplicity and ruthless efficiency. Composed of Lycra, polyester, and elastic, this chair is as comfortable as it is fashionable. It operates on a spring loaded mechanism, has a natural lumbar support curvature, as well as efficient aeration in its mesh back and seating. Recline Range/ Ratio Seat Back – 5° – +7°. Designed to minimize impact on the environment. The Design: The chair has a streamlined, athletic appearance with a modern, minimalist aesthetic. Comfort Features: Includes Active Suspension, which couples a unique synchronized recline with a proprietary suspension fabric. Adjustments: Features intuitive adjustments, such as forward tilt, synchronized recline, and pneumatic height adjustment. Lumbar Support: Comes with a built-in forward tilt and an ample lumbar curvature to support your lower back. Overall Height Range: 36.5″ – 41″. Seat Height Range: 18″ – 22.5″. Seat Width: 19.5. Seat Length: 18.5. Designed to provide e energizing comfort and extreme support throughout the day, the Knoll Chadwick is the perfect combination of form and function. It’s the most comfortable work of art you’ll ever sit in!