100% Mulberry Silk, 22mm?[Natural Silk Material]: Winjoy luxury silk pillowcases are made of 100% pure natural mulberry silk. 22 Momme (600 Thread Count). The comfort and breathability of silk make you feel refreshed in the summer and smooth in winter. Silk fabric contains 18 kinds of amino acids, which are believed to be effective in stimulating the metabolism of skin cells and are very suitable for anti-aging. Silk never absorbs facial moisture and is perfect for people with sensitive skin.?[Best for Hair and Skin ]: Pillowcase creates less friction of your beautiful curly hairstyle and reduces hair breakage than sleeping on cotton pillowcases – Silk ultra-Soft, Smooth, Breathable,Wrinkle-free??Will NOT absorb moisture to help retain your shiny hair , perfect for curly hair – silky pillowcases prevent hair from becoming knotted and matted. Great for preventing wrinkles, dry skin and frizzled hair, and morning bed head.?[Hidden/Invisible Zipper Closure ]: Hidden zipper closure design makes your pillows escaping from pillowcase during your sweet dream, without moving around.Top-quality workmanship handmade & eco-friendly multiple colors. These colors will not fade and durable.?[Natural Temperature Regulator]: A special silk SERJCIN ingredient in natural silk with skin-friendly nature. Natural silk contains a substance called ??hydrophilic side amino acid?? that absorbs moisture from the air and removes it to keep the pillow dry and comfortable. Sleeping on a mulberry silk pillowcase, helps you to feel cool during summer nights and warm in winter. All these features make a great gift for anyone who enjoys deep, restorative sleep!?[Queen Size and Gift Ideas]: The size of 20 x 30 fits most queen size pillows. You have the freedom to pick your favorite color based on your bedroom setup and personality. Our Winjoy pillowcase is good for all age levels and a must-have for home, travel for all seasons. If you are looking for a gift for yourself or your family or friends, this is the right product. If you have any other questions, pls feel free to contact Winjoy after-sale customer service through email@example.com.