The chair features a durable nylon base with nylon castors, making it easy to maneuver around the office space. The nylon back with mesh and adjustable lumbar support provides excellent support for long hours of sitting. The seat is constructed with PU molded foam and fabric upholstery for maximum comfort. In addition, the 3D adjustable armrest with PU pad allows for customizable comfort and support. The chair also includes a syncro tilt multi position lock with seat slider and a class 4 gaslift for added convenience and adjustability.Upgrade your office space with the Ergonomic Office Chair Adonis and experience the ultimate in comfort and support.