SLIP Silk Pure Silk Queen Pillowcase, Peach, Queen (20 x 30 Inch) NEW. 100% authentic brand new sealed in box $89 Includes 1 x Queen / International Standard Pillowcase (20” x 30” | 51cm x 76cm) Machine washable | See care instructions for details. Product description: Slipsilk™ is specially-commissioned and made to our exacting standards, developed and refined over ten years to provide the ultimate combination of shine, thickness, softness and durability. We use the highest grade (6A) long fiber mulberry silk, with a thickness of 22 momme and enforce the strictest quality guidelines, including non-toxic dyes. Dermatologists recommend slip® pure silk pillowcases over satin pillowcases for their patients.* Over 92% of users agreed that they prefer sleeping on a slip® pure silk pillowcase over their ordinary cotton or synthetic (non-silk) satin pillowcase.† 90% of users agreed that their skin felt more moisturised or hydrated after making the switch to a slip® pure silk pillowcase from a synthetic (non-silk) satin pillowcase.