OOSILK 100% Mulberry Silk Pillowcase for Hair And Skin Standard Size 20"x26",Black, 1pc Material:100% mulberry silk on both sides, 16momme, 400 threat count, gains extra softness to the pillowcase. OOSILK strictly controls the shrinkage and fastness of the silk fabric, giving OOSILK's silk pillowcases a combination of softness, smoothness, and durability. Benefits:OOSILK's Grade 6A mulberry silk fabric is weaved with extra long and strong silk fiber, thus it can be super breathable, soft and durable. It is cool to sleep on and can help prevent bed sweats. Silk fabric's has unique amino acids are believed to effectively stimulate skin cells' metabolism, therefore slowing the aging process. The classic charmeuse weave allows the skin and hair slide over the pillowcase very gently and freely, which will affect less facial wrinkles and prevent dry/ knotted hair, morning bed head, guarantees healthy, deep sleeping. It is 100% chemical free, natural dyed, no color shading or fading. Size:20x 26inches (51x66cm), fits standard pillows. Hidden zipper design makes the pillowcase hold the pillow perfectly. Big opening and longer zipper allow you to easily fit the pillow into the pillowcase. Gift package! Each pillowcase is handmade according to our high standards and wrapped in a beautiful box. It is great gift for anyone or yourself.