Poor posture, such as that seen when someone is slumped or sacral sitting, can be a cause of pain and disability. Correct positioning of the body reduces the strain on the muscles, ligaments, bones and joints. Internally the organs and the blood vessels are not compressed, leading to improved lung function and breathing. In addition to the reduced comfort, shear forces caused by continually sliding into a sacral sitting position will be reduced and will help in pressure sore prevention. The Salisbury range of cushions has been designed in conjunction with the Department of Medical Physics and Biomechanical Engineering at Salisbury Hospital. The contouring of these cushions encourages a more upright posture and prevents sacral sitting. Covered with a waterproof, vapour permeable two way stretch cover with a zip to enable inspection of the cushion or washing. The anti-slip base prevents cushion movement. Size 430 x 430 x 80mm (17 x 17 x 31/4").