Designed to give you the "cool side of the pillow" feeling throughout the night. Made from breathable cotton, includes a sewn-in layer of shredded polyester for extra cushioning and has a side zipper so it can easily be removed and cleaned.With 1" memory foam that contours to your neck and molds to the shape of your head. The 2" cushion and 1" insertable cushions contain shredded pieces of foam that provides the pillow with a fluffy and cloud-like feel, it also stays cool at night by increasing airflow and breathability throughout.