The Sitag SitagXilium DuoBack office chair with XV-Move mechanism is Swiss-made and combines precise ergonomics with noticeable freedom of movement. The DuoBack backrest consists of two movable wings that adapt flexibly to the back, stabilize the spine and provide targeted relief for the lumbar region - ideal for long periods of concentrated work. At its heart is the patented X-MOVE function, which supports dynamic sitting in three planes: It enables lateral movements in the frontal plane, gentle deflections to the side and fine rotation in the lumbar region. The sophisticated synchro-mechanism coordinates the movement of the seat and back, the rocking mechanism can be finely adjusted to the body weight and the backrest can be adjusted in height and locked if necessary. A seat depth adjustment with ergonomic sliding seat and seat tilt adjustment for an active, forward-leaning working posture ensure the perfect sitting position. 4D armrests can be adjusted in height, width, depth and swivel angle and bring the forearms relaxed in line with the keyboard and mouse, which noticeably relieves strain on the shoulders and neck. High-quality materials, a quiet, durable mechanism and the clear, timeless design underline the quality standards. The result is a task chair that promotes health and performance by intelligently combining support and mobility.