Details: The streamlined, stylish contour of the Steelcase Leap chair is just the beginning. The Leap is the first chair that actually changes shape to support your movements! With its Live Back technology, it moves dynamically as your back moves, mimicking the movement of your spine; the arms of the chair move in and out, forward and back; the seat glides forward so you can recline without leaving your vision and reach zone, and stay oriented to your work. Even when leaning forward, the seat edge flexes to relieve pressure on the back of the legs. In short, the Leap chair's ergonomic advances allow you to work comfortably, and more productively, in a proven healthy manner for extended periods of time.