Niels Diffrient's Freedom Chair (1999) was a breakthrough in ergonomic task seating. With a height-adjustable headrest, the Hi Back version offers customized support for the head, allowing for proper eye-level positioning when working long hours at a computer station. The Freedom Chair is designed to fit almost all body types. The seat depth is adjustable to properly support the seat and thighs, while the adjustable back support helps to keep the lumbar region of the body in line. Often, ergonomic chairs are likely to be improperly positioned, resulting in the creation of more problems than they solve. The Freedom Chair is simpler than other chairs, eliminating many manual adjustments and creating instead a system of internal mechanisms that respond to the user's needs. A unique counterbalancing tilt mechanism self-adjusts according to the user's weight and movement, thus eliminating the need for manual fixes. In addition, the chair and seatback can be easily raised or lowered, and the seat itself moves forward or back. Any adjustments can be easily made while the user is seated for accurate positioning. Because of a natural lift-and-release action, the armrests are effortlessly repositioned depending on the task at hand, and unlike other ergonomic chairs, the armrests work in tandem. The seat cushion provides excellent shock absorption and weight distribution for unmatched comfort. Made in U.S.A.