Fall in love with our designer finishing touches: seamless hidden zipper closure, matching piped edges, contoured fit. Pamper yourself with a simple upgrade to our 100% Mulberry silk pillowcase. 22 momme silk is well known for its gentle touch on the delicate facial skin, as well as for helping to tame hair prone to frizz and flyaways. The beauty secret lies in the smooth surface of our premium A6 rated silk—the highest quality available—which helps your hair and skin retain vital hydration throughout the night. B O N U S: Sleep cleaner on Pure Silk. Every Pure Silk pillowcase comes with a complimentary laundry wash bag and our antimicrobial silver product protection inhibits bacteria, mold, and mildew that cause deterioration, stains, and odors on this product.