This swivel office chair ensures the perfect balance of ergonomic comfort and maximum support to offer exceptional seating for any office, at-home work desk, executive suite, or just about anywhere. The seat is made from Authentic Tempur® material and upholstered in a stylish fabric, and the chair features a breathable mesh back. The pneumatic seat height adjustment ensures you have a proper seat at your desk, and the adjustable tilt tension knob and lock-out feature ensure customized positionings. Plus, you can easily move the lumbar support up and down to create much-needed lower back support (height adjustment range is approximately 2"). The five-star heavy-duty base with 360-degree swivel and dual-wheel casters that rotate easily allows for smooth mobility around offices.