Ergonomic Office Chair, Height Adjustable Rocking Armrests 120 kg, BlackErgonomic design The S shaped backrest adapts perfectly to your spine, and the head and lumbar cushions provide support exactly where you need it. The easy care faux leather upholstery and thick seat padding ensure extra comfort while you work. Supports Your Back The backrest is covered with breathable mesh fabric that prevents you from sweating while still providing good support. The smooth tilt mechanism helps relieve back strain. Infinitely height