Soft and smooth This Silk Pillowcase is made of natural mulberry silk, 100% pure mulberry silk pillowcases. Silk pillowcase is very soft,smooth and Breathable, you can have a good sleep when you using it. Friendly to Skin and Hair Natural silk material which can keep your skin moist. Slip Silk Pillowcase can give you comfortable and cool touch, its best to prevent wrinkles and aging,prevent hair knotting mulberry silk pillowcase is Hyperallergenic, its a good choice for Sensitive skin. Hidden Zipper Design Hidden zipper keeps your pillow safe and secure inside the case all throughout the night Perfect fit for your pillow, no need to worry about the pillow coming out when you turn over and move in sleeping. Washiang Precautionsreal silk pillowcase need more care ,because it is 100% pure mulberry silk Back side washing, dry cleaning or gentle hand wash with mild detergent in cold or lukewarm water to protect it better It better to wash separate from other item Dont bleach Drying: Natural Air Drying ,Cool iron on silk pillowcases backside if needed .