A highly robust, physio approved, High-Back Ergonomic Office Chair designed to last the distance with 24-hour use certification and 152 kg weight tolerance. This chair has been specifically designed to alleviate backaches and muscle pain with a range of useful features including inflatable lumbar support. The asynchronous mechanism means the backrest and seat angle can be independently fixed (even tilting forwards) or free float aiding good posture. Upholstered in fabric or PU leather.