The Topstar Sitness Life 80 office chair combines modern design with ergonomic comfort and innovative movement technology. The multifunctional headrest can be individually adjusted in height and inclination and offers optimum support. The ergonomically shaped backrest with breathable mesh cover and sturdy, white powder-coated aluminum frame ensures optimum ventilation and long-lasting stability. A height-adjustable lumbar support provides targeted relief for the spine and supports a healthy sitting posture. For additional comfort, the armrests are height-adjustable and fitted with soft pads. The upholstered seat with integrated seat depth adjustment and comfortable knee roll adapts perfectly to your body size, while the infinitely adjustable seat height offers flexible adjustment options. The unique Sitness® technology enables three-dimensional movement of the seat surface, which promotes dynamic sitting and prevents back pain. The comfortable synchronous mechanism with body weight-dependent spring force adjustment ensures harmonious adjustment of the seat and backrest angle, which can be locked several times. With its stylish white aluminum frame and sophisticated functions, the Sitness Life 80 is the ideal swivel chair for anyone looking for design, ergonomic comfort and dynamic sitting in one product.