MEILIS 19mm Mulberry Silk Pillowcase with Hidden Zipper ,Anti-Bacterial ,Anti-aging,Anti-sleep crease, Anti bed head 100% Silk one silk side and cutton underside Invisible zipper closure Standard/Queen and King size Minimize Wrinkle Eliminate bed hair promote healthy hair and skin Creat absorbent,breathable and impressive moisture wicking properties,keeping you dry and comfortable in any climate,year-round.