Ergohuman Executive Chair combines esthetics, form and function for total ergonomic comfort. Set seat back in an angle for personalized comfort in reclined position. Raise or lower back height to support your lower back region. Seat-height adjustment sets seat height from 18" to 21-1/2" for your preferred position relative to floor. Seat depth slides relative to back for ultimate, customized seating. Leather-upholstered, padded, waterfall seat with sloping front reduces pressure on the back of the knees. Tilt-tension control with tilt lock allows you to adjust the recline rate based on your weight. Synchro-tilt back reclines in a preset ratio to seat. Depth-adjustable arms slide forward or backward for proper ergonomic positioning. Arm-height adjustment adjusts arm up or down while arm pads angle in or out. Leather-upholstered chair is a perfect combination of high-quality material and ergonomic support.