Orthopedic lining to help relieve lower back pain. Put the lining on the chair and enjoy sitting without any pain! This pillow is a great choice for you if you have back pain or sit at a desk for a long time throughout the day as it works to relieve pressure on your back. Its ergonomic design enhances healthy posture and proper alignment of the spine. Moreover, this pillow is made of the best types of sponges that do not become flat over time.