Premium microfiber material make our pillowcase more smooth and breathable, so it can protect your facial skin from sleep indentations that could become deep wrinkles, and creates less electrostatic to protect hair from tangles, split ends, and frizzy , keep your hairstyle shiny. 100% pure silk pillowcase key benefits: it is hypoallergenic, chemical and irritant-free, anti-aging benefits, reduces bed head, promotes healthy skin and hair, extends blowouts and hairstyles