Features: From A Class memory foam component with excellent elastic and support, it can effectively fit the neck and relieve pressure. Not collapsing design: Even after prolonged use, the pillow core keep its shape and is not easy to deform, ensuring long time comfort. Neck protection function: the unique design can effectively support the cervical uncomfortable, help improve sleep quality. Breathable Pillowcase: Equipped with a highly-quality pillowcase, soft and breathable, it is not easy to feel stuffy when using it in spring. Ensures durability support with adapt responsiveness that adjusts to body temperature and weight. Specifications: Component: Polyurethane Memory foam Color: Optional Density: about 60D. Inner cover component: silk of milk. Size:about 60x39x8.5cm/23.62x15.35x3.35in Note: Can not wash the pillow core. Package Includes: 1PC memory foam pillow note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.