Mid-Back Mesh Desk Chair features a breathable mesh back, height-adjustable lumbar support and thickly cushioned seat with fabric upholstery for a comfortable seating experience. The sturdy arms adjust in height and feature soft padding made of polyurethane so you can sit back and relax. Customize the chair for the ideal position with comfort functions including pneumatic seat-height adjustment, tilt lock, adjustable tilt tension and 360-degree swivel. Nylon base is equipped with dual-wheel casters for easy chair movement.