In a year-long study, people who received Leap chairs and office ergonomics training achieved a 17.8% increase in productivity. The Leap chair's back moves as your back moves. Its arms move as your arms move. Its seat moves as your seat moves. It's the first chair that actually changes shape to mimic and support the movement of your spine. The Leap Chair--and only the Leap Chair--conforms itself to all the multiple requirements you demand from healthy seating. This is a Genuine Steelcase Product. The leap chair has an upper back force adjustment, a seat height adjustment and back slope adjustment. The arms on the fully adjustable leap chair pivot as well as adjust in height.