The Amia chair has a secret. Beneath the Amia chair's upholstery, inside its sleek backrest, there's a unique comfort system called live lumbar™ technology. You may not see it, but you'll certainly feel it. As you sit in the chair an adjustable live lumbar™ zone flexes with your every move for consistent ergonomic support for your lower back, hour after hour, day after day. The Amia chair was designed by Steelcase in collaboration with industrial designer, Thomas Overthin of IDEO.