Executive high-back chair offers advanced technology airflow fabric that is highly breathable to give you the sensation of sitting on air. Back is ergonomically designed for lower back comfort. Seat and back cushions are 4″ thick for comfortable seating. Aluminum open loop frame has upholstered arms. Five-star brushed aluminum base has plastic scuff guards. Functions include pneumatic seat-height adjustment (19″ to 22-1/2″), 360-degree swivel, tilt and tilt tension. Seat cushion size is 22-1/4″ wide x 21-3/4″ long. The back cushion is 21-1/4″ wide x 31-1/2″ long. High-back chair meets the CA117 fire-retardant standard.