Size: Queen Color: Black 100% mulberry silk 22mm fabric weight for a premium drape and hand-feel Zipper closure Hypo-allergenic Sleeping on a silk pillowcase keeps your skin and hair hydrated, reduces the appearance of fine lines and wrinkles, and minimizes dreaded bed head. Plus, silk fiber contains 18 kinds of amino acids that make it amazing for skin nourishment, hypo-allergenic, and naturally thermoregulating to help maintain body temperature.