The most innovative back support with unique Tri-Tachment™ strapping ensures stability when seated and eliminates the need for constant readjustment. The 3 Section Lumbar support can expand and contract to allow for the natural body curvature with applied body pressure. The Thoracic Support is contoured with a low density memory foam to provide optimal postural support with subtle application. The fully adjustable easy to use design allows it to attach to most office chairs. Place the Back support on your chair, position your back where comfortable and just clip the straps! Accredited by the FIRA International, an Independent Ergonomic Accreditor.