Sitness AirWork office swivel chair with adjustable armrests. The backrest features a breathable mesh cover and height-adjustable lumbar support. It has a synchronized mechanism with fine adjustment and integrated 3D seat movement. The comfortable flat seat promotes optimum sitting posture. The backrest tilt can be adjusted in four stages by limiting the travel. The armrests are adjustable in height and width, and the seat depth can be adjusted with a sliding seat. The Sitness AirWork is distinguished by its unique breathable backrest with height-adjustable lumbar support and the coordinated color of the seat and backrest. It is equipped with integrated 3D-Sitness movement technology, where the spring force automatically adjusts to the user's weight and can be fine-tuned using a rotary crank. The elegant black plastic base is equipped with load-dependent braked safety double castors suitable for carpeted floors. All plastic parts are made from recycled plastic, allowing for the separation of individual resources. The product packaging is made exclusively from cardboard and recycled paper.