LILYSILK Printing Pattern Silk Pillowcase with Hidden Zipper 16MM 100% Mulbery Silk Double-side Light Blue Peony Standard 20x30 inches 100% mulberry silk Crafted by 100% Pure Mulberry Silk for Both Sides, 16 Momme Mulberry silk pillowcases contain a natural protein and amino acids. Protect the hair and skin, Anti wrinkles. Silk fabric is totally clean and mite-resistant. Great absorbent, breathable and impressive moisture wicking properties, keeping you dry and comfortable in any climate, year-round. Machine-washable in lukewarm water (30C) on most gentle cycle available. Minimize spin time. Hang dry if possible. Tumble dry on a cool setting if using drying machine. Avoid drying for extended period of time. Iron when slightly damp using a cool setting. Always iron on the inside. Use neutral or special detergent for silk, such as Tenestar