Sleek, aerodynamic lines give the Amplify collection power, with a modern look and sumptuous comfort. Midback and highback mesh and highback upholstered chairs are available in multiple frame, arm and base colors. Amplify offers more built-in features than any other chair in its class, with enhanced synchro, height adjustable arms and adjustable lumbar support all standard. The curvaceous profile and vast array of options make this a chair that delivers style as well as substance.