1.Polyester 2.BEST FOR HAIR & SKIN: Our satin pillowcase black are silky soft for your hair and skin. Queen satin pillowcases keep hair from tangling and frizzling. Perfect for curly and long hair. Helping your hair stay smooth throughout the night. It can also nourish your skin, breathe and stay hydrated while you sleep reducing facial wrinkles. You will wake up with y skin and beautiful hair every morning. 3.SUPPER SOFT & COMFORTABLE: Our satin pillowcase for hair and skin is made of high-quality polyester satin fabric, which provides you silky smooth touch, feeling soft, cool and lustrous. Queen silk pillowcase is not only Wrinkle- and luxurious but more soft and durable than others. It is a great choice for creating a good sleep environment! 4.ENVELOPE CLOSURE DESIGN: Our satin pillow cases are equipped with envelope closure for tucking in the open end. No zipper and doesn't poke your face while you rest. Easy to take the pillow secure in or out. The satin pillow case holds your pillow securely in place. 5.[WHAT YOU CAN GET]2 Pack satin pillowcases with Envelope Closure,Queen Size:20"x30"