Polyester,cotton HEIGHT-ADJUSTABLE AND ORTHOPEDIC: Experience personalized comfort with the SISSEL Classic Plus Neck Pillow. The height-adjustable feature makes it ideal for all body sizes, while providing orthopedic support to relieve neck and back pain. ERGONOMIC DESIGN FOR HEALTHY SLEEP: With its ergonomic shape, the SISSEL neck pillow supports the natural alignment of your spine. Enjoy restful sleep and wake up without neck or headaches. PREMIUM MATERIALS FOR DURABILITY: Benefit from the high-quality craftsmanship of the SISSEL neck pillow. The actively supportive polyurethane foam and the skin-friendly velour cover ensure shape retention and comfort for years to come.