This mesh back ergonomic desk chair features luxury and breathability with a thick padded contoured leather seat and a mesh back with lumbar support. A pneumatic seat height adjustment offers smooth transition to the perfect level for maximum productivity. Adjustable height and tension lumbar support ensures that your back remains comfortable while you complete your tasks. A knee tilt mechanism and tilt tension help you keep control of your seating position. The height adjustable arms with padded armrests give you comfort while you work.