Pure Mulberry Silk Fabric - Double sides of this pillowcase is made of 100% 19 momme grade 6A quality mulberry silk, which is smooth, breathable and cool to touch. Cobnom pure mulberry silk pillowcase is more sturdy than other cheaper ones Care Your Hair and Skin - Don't worry about wake up with frizzy and split ended hair. Silk pillowcase could keep your hairdo shiny and hydrated. It also has benefits for your skin. The protein in silk is proved to naturally remove the dead skin cells and sweat to promote supple skin Long-lasting & High Quality - Grey silk silk pillowcase queen size 20x30 inches, covers most standard / queen size pillow. Superior plain color, not easy to fade after washing. the ideal gift choice for Thanksgiving, Christmas, anniversary, etc Hidden Zipper Closure - Our silk pillow cases are equipped with hidden zipper closure. The zipper is smooth and enduring, and the hidden design keeps the aesthetic and moderness of the pillowcase Easy Care - Recommed to hand wash. If you want to machine wash, please put it into a laundry bag then wash with mild detergent. Tumble dry at low temperature. Do not bleach Cobnom 100% Pure Mulberry Silk Pillowcases is a small luxury, but it has big benefits. The soft, strong substance has tremendous effects on your hair and skin. When spun into silk pillow cases, silk pillow covers, silk pillow shams, and silk protectors may help ease hot flashes, prevent the effects of aging, and relieve certain skin conditions. Standard, Queen, and King silk pillowcases with multi-color available (White, Grey, Black, etc.)