By far this is the most versatile cushion in the Desk Jockey arsenal! People who sit for prolonged periods (>1 hour) either at a desk, driving, flying, or even relaxing at home can benefit from the additional lumbar support. Our spine is naturally built with flexible curves. Excessive sitting can put a stress on those curves and the supporting tissues around them eventually causing pain. A lumbar cushion of this quality can support your spine to sit for longer periods and be shifted to different levels of your spine to assist in pain control.