1.Fabric: The satin pillowcase is made of polyester satin to provide a durable feel with a distinctive and shiny appearance. Satin is more stable and durable than silk pillowcases. 2.Enjoy beauty sleep: The silky satin pillowcases are friction-free, provide a slip and smooth texture to protect your skin. Satin pillowcases create less friction to your beautiful curly hairstyle and reduce hair breakage than cotton pillowcases. Satin pillowcases are cool in summer and warm in winter and can be used all year round. 3.Improve your beauty sleep: Sleeping on our hypoallergenic non-irritating satin pillowcase can also help your skin. With less friction on the skin while sleeping, you will experience fewer sleep lines that have fewer wrinkles over time. 4.Envelope closure design: package includes 2 x pillowcases (pillows are not included). The zipless hotel closure makes the satin pillowcase easier to remove and fix to prevent hair from being pulled. A variety of colors are available, you can find the favorite color to decorate your home. 5.Care instructions: Turn the satin pillowcase left, hand wash or machine wash with a mild detergent in cold water, gently circulate, cold iron, do not bleach.