Our Aeron Chairs are sourced from Herman Miller Enthusiasts and Renewed to maintain the authenticity of the masterful materials, delicate engineering, and accurate calibration. Upgrade your office, home office or workspace decor with a design that’s an instant classic, featured in the permanent design collection of the Museum of Modern Art in New York. Unquestionably more comfortable, more encouraging of good posture, The Aeron Chair embodies the modern prospects for ergonomic and comfort. Suspension seating with full ergonomic support Fully Loaded Chair Tension Control Adjustable Arms Pneumatic Height Adjustment Kinemat Knee-Tilt Mechanism Tilt Lock Height Adjustable Lumbar Support. Popular Arm Styles The Non Adjustable Arms are stationary. Classic Clip Latch Arm can move up and down, while Thumb Wheel Roller Arms can pivot to inner or outer angles, tilt backward and forward and move up and down the backrest for the ultimate customizability.