Torasen Chairs and the Orthopaedica range offers a comprehensive range of ergonomically responsive task seating, making them an ideal choice for those with back problems. The Orthopaedica range offers a wider range of back heights, as well as the option of a headrest variant to create a truly adaptable & bespoke seating solution. Key features include: Seat depth adjustment, inflatable lumbar, inflatable thorax, choice of arms, coccyx cut out and the unique AirTech seat board: a body responsive seat support that moulds and adapts to your every movement, allowing the lower back to be supported and at the same time stimulate muscles. On all Torasen Chairs, the choice of mechanism allows the seat and back angle to be adjusted either independently or in sync to achieve a fixed ratio position. Independent movement enables the seat and backrest angle to be adjusted separately, with the ability to lock in a fixed position. Synchronised mechanism enables seat and backrest angle to be adjusted to required position. Fixed ration of 1:8:1 ensures correct ergonomic posture.