22MM Silk Pillow Case:The quality of our sleep depends greatly on what we rest on. That's why our silk pillowcase is the perfect choice for a soothing night's sleep. Silk offers benefits such as moisturizing and preserving skin and hair, as well as a soft surface to minimize harmful friction. The 100% natural mulberry silk guarantees long durability.Our 22MM silk pillowcase also features properties such as thermoregulation and acts as a natural anti-acne ally.   100% Silk Momme: 22MM Closing: Zip