Other pillowcases don't slip, causing damage to hair and delicate facial skin. slip silk allows your skin to glide, whereas cotton scratches and tugs on delicate facial skin, resulting in premature stretching and sleep-crease.
Technically, aesthetically and functionally, there is literally nothing like silk. While man has spent decades trying to copy silk with products like synthetic satin, nothing has ever come close to providing the health benefits of the real thing.
Made from mulberry silk with a thickness of 22 momme, slip silk pillowcases are the very best available anywhere in the world.