Metron- Orthopedic Memory Foam Seat Tailbone Coccyx Cushion | Car Seat Butt Pillow Hip Support for Office Chair and Wheelchair | Color Black | Pack of 1Premium quality cushion: This premium seat cushion is made from high density 100% memory foam, 2. 5 inches thick. The outer fabric of this sitting pillow is breathable mesh material which is removable using a zipper and can be machine washed when needed. Thus allowing for complete care of this comfortable sitting pillow Versatile applications: this pain relief cushion is a must have product with versatile usage like car seat cushion, office chair