Ergonomically designed to provide excellent support to help relieve lower back pain and promote good posture. Highly versatile and can be used at home, at work or when traveling. The high-quality memory foam reacts fast to provide instant relief and comfort, and provides slow memory foam recovery for longer support. The removable soft polyester and rayon cover zips off easily for machine washing. Hypoallergenic. 12"H x 13"W x 4.3"D Latex free.