The pillow core can be deformed to adapt to the curve of the head and neck, and fit and support the cervical vertebrae The pillowcase material is silky and delicate, soft and breathable, suitable for all seasons Scientific and reasonable neck support, soothes the neck muscles, and maintains the cervical vertebrae Meet a variety of sleeping positions, fit the neck when sleeping on your back, and do not press the shoulders or ears when sleeping on your side Inner core material: memory foam Filling material: PE hose Outer pillowcase: Front [85% polyester fiber, 15% spandex] Side [100% polyester fiber] Bottom [87% polyester fiber, 13% spandex] Inner pillowcase: 92% polyester fiber, 8% spandex
