The SitagXilium is an ergonomic Swiss-made office chair that can be quickly and precisely adjusted to suit different users and work tasks. The sophisticated synchro-mechanism coordinates the movement of the seat and backrest and promotes natural posture changes; the load-dependent rocking mechanism automatically adjusts the resistance to the user's body weight. If necessary, the backrest can be locked in place to provide stable support even during quiet working phases. The upholstered backrest is height-adjustable and supports the back in all positions, while seat depth adjustment and seat tilt adjustment optimize the thigh support and enable a more active, forward-leaning working posture. For individual relief, there is a choice of versions with or without a headrest, as well as versions with 4D armrests. The latter can be adjusted in height, width, depth and rotation and bring the forearms ergonomically in line with the keyboard and mouse, providing noticeable relief for the shoulders and neck. The controls are logically arranged and easy to reach so that adjustments can be made without interrupting work - ideal for shared workstations. High-quality materials, a quiet, durable mechanism and the clear, timeless design underline the Swissmade quality standard. Whether in the office or home office, the SitagXilium combines ergonomic substance, reliable technology and uncomplicated ease of use to create a harmonious task chair for long, concentrated days.