The Carex memory foam coccyx seat cushion has an ergonomic coccyx cutout design to reduce pressure on the tailbone. Perfect for those who spend most of their day sitting, this cushion will improve any seat instantly by adding more support. Made from premium high-quality memory foam that immediately reacts to provide pressure relief, our seat pillow is the perfect size to take anywhere. This versatile cushion can be used at a work desk as an office chair pillow or in your car for additional support. Our attractive navy blue cover is hypoallergenic and made of soft polyester and rayon. The removable cover is machine washable, so you can easily keep the cushion clean between uses.