The ergonomic perfection of the seat is unprecedented. In collaboration with scientist, engineers and designers, Sedus created theCROSSLINE seating system, that follows the dynamics of your body. The most important element of this modern swivel chair is the Similar-Plus mechanism, that provides ultra-smooth movements and dynamic seating. The streamlined shape of the backrest adjusts itself to the weight of the seating person, and gives the user a perfect lumbar support by constantly ensuring contact with the user’s back and gently soothing the movements of the spine. Its easy adjustability makes this chair your perfect partner in the workplace. The fastening of the seat – int he shape of a characteristic X – is recognizable in the entire family of products and is a unique feature of the CROSSLINE seats’ design.