100% polyester satin to provide resilient feel with a distinctive and lustrous appearance - High quality satin is more sturdy and durable than silk pillowcases, Luxury satin pillowcase provides smooth .JOBOSO satin pillowcases keep you warm in cold and cool in hot to establish a sound sleep all night.Cool and breathable smooth satin pillowcase can protect your hair. Satin pillowcases reduce the friction of your beautiful curly hair and reduce hair breakage,protect your hair to keep tangle and frizz free. also can protect your skin against the facial sleep lines that could become deep wrinkles100% polyester satin to provide resilient feel with a distinctive and lustrous appearance - High quality satin is more sturdy and durable than silk pillowcases, turn the satin pillowcase inward put it in a mesh laundry bag and then wash it with neutral detergent The cool luxury satin pillowcase can be washed well and air-dried better and fasterEnvelope closure end design. Your pillow will be held securely inside the satin pillowcase while you sleep, and there are no zippers to poke at you while you sleep