Square-shaped memory foam chair cushion for enhanced comfort when sitting. Ideal for home, office, or travel, whether in a rocking chair, office chair, or a car or airplane seat. Made of ultra-soft viscoelastic memory foam that conforms to the body and offers sink-into supportive softness. Waterproof and spill-proof removable cover zips off for easy cleaning as needed; choice of color/pattern. Measures 37.6 by 38 by 3 cm.