This Contoured seat cushion is specially designed to relieve pains and discomfort for those suffering from Back Pain, Sciatica and Tailbone Pain, Arthritic Spine, pregnancy back pain, hip pain, hemorrhoids, and other spinal issues. The ergonomic pillow is designed to evenly distribute weight and promote proper posture and spine alignment. The support pillow is made with premium quality memory foam. It is soft and breathable, comfortable to use. The external cover is removable and washable so you don’t have to worry about your pillow getting dirty. It is also portable and can be used on office chairs, car chairs and on airplanes.