Unlike cotton, satin doesn't absorb moisture from your skin helping it to stay hydrated while you sleep for a more youthful complexion. Satin is said to prevent sleep lines on your face, decrease bedhead and helps to prevent split ends. Your eyelashes will also benefit from the lack of friction standard cotton pillowcases may cause. 100% satin polyester material making it Vegan-friendly alternative to silk. Includes 1 standard size, zipper closure satin pillowcase.