Due to its shape, the seat wedge pushes the pelvis forward, which helps bring your back to an upright posture. Ideal for anybody working for long periods of time in a sitting position, especially computer users. Also consider the Lumbar Support by Tempur. All TEMPURTravel and Home products contain Tempur - a temperature sensitive, visco-elastic material, which forms to the shape of your body to provide comfortable support with minimum counter pressure. The products are resistant to mites, antimicrobial treated and hypo-allergenic.