Sleeping on a sateen pillowcase helps keep hair and skin healthy. These luxurious pillowcases are made of 100% long-staple cotton and have a 400 thread count for ultimate softness and quality. The sateen weave ensures a smooth, shiny surface and durability. The modern envelope closure keeps pillows in place. Our pillowcases are also Standard 100 Oeko-tex certified, ensuring they are free from harmful substances.