Niels Diffrient?s ?gold standard in office seating? (The New York Times) eliminates levers, dials & other mechanisms to provide physics-driven, ergonomic support that?s as simple as it is elegant. Its headrest also moves with you, seamlessly supporting the head and neck in any posture ? no manual adjustment required. Adapts to your unique pressure points, providing uninterrupted comfort & promoting healthy movement all day long. Armrests are attached to the back of the chair; moving with you in tandem both in and out of recline. Designed to function like new even after years of everyday use. Net Positive certification means every Freedom manufactured offsets climate change.