Pollution Free Handmade Soft&Pure Why choose silk as major raw material of pillow1. Silk contains 18 kinds of amino acids needed by human body, it is by far the most comfortable natural material next to the skin.2. Silk is smooth, supple, soft to the touch, always conform to your body shape and never bunch.3. Silk is breathable so it wicks away the moisture from sweat, keeping a person cool and ...