Buy Slip - King Pillowcase Invisible Zipper Closure - Sleep (Navy) at THE ICONIC with Free overnight delivery and Free returns! Anti-aging, anti-sleep crease, anti-bedhead, not all silk pillowcases are created equal. The Navy King Pillowcase from Slip is your beauty secret. - Dimensions: H51cm x L91cm- Navy hue- Invisible zipper closure- Designed in Australia- Long fiber Mulberry silk 22 momme- Non-toxic dyes 100% Mulberry SilkMachine washable