Made of high-quality satin fabric, which is smooth, super soft, breathable and not stuffy, feels great to the touch. It allows you to sleep with less friction between your hair and pillow, reduces frizz when you sleep and prevents tangles, thinning, split ends and breakage, preventing your hair from getting damaged, knotted, keep your bed from hair oil, water, or falling hair during sleep. It is big enough to pack all of your hair, custom design for long natural hair,wider band comfortable, not easy to fall down, one size fits most of people. It can be used not only when sleeping, but also for face washing, skin care, hairdressing, makeup, housework, bathing, running, walking the dog, gardening, or in the leisure time at home, and also for chemotherapy patients.