?SILK CARE? Hand wash slap cap in cold water with mild detergent or dry Clean. Machine wash only on gentle cycle with a mesh bag. Flat air dry recommended. Do Not Bleach. Do Not Tumble Dry. Cool Ironing. Extra Care Tip: Add a few drops of hair conditioner to the rinse water to keep the silk soft and slip, (Just like care your hair). ?HASSLE-FREE WARRANTY? We recommend buying 2 or more, not only for backup use when you washed the another one, but also for a great gift choice! And we believe you may want to bring it when traveling! In Business since 2009 - FocusCare guarantees to provide 1-Month return and replacement service & life-time free customer service - We want our customers to be 100% happy and satisfied - You can always come to us for any product issue and product care at our store. ?NATURAL TEMPERATURE REGULATOR? Pure mulberry silk is a natural temperature regulator which is skin-friendly and moisture to help feel cool in summer and warm in winter. Sleep on silk slap cap, you will sleep well overnight and enjoy sweet dreams. ?ULTRA SOFT & SMOOTH? Silk's natural fiber and tight weave allow the skin and hair to slide over the pillowcase very gently and freely, it creates less friction between your hair&skin and the silk slouchy helps reducing hair wrinkles, preventing dry/ knotted hair and reduce hair loss. ?BREATHABLE & NATURAL?100% Nature =100%Relax, Outer fabric:95%Bamboo Viscose;Inner fabric:100%Mulberry Silk. Machine Wash. Drawstring closure. Imported. Knitting Jersey.