【100% MULBERRY SILK】: The contour pillow case is made of 100% pure natural mulberry silk, which is a natural fiber that contains 18 kinds of amino acids, which helps relieve skin discomfort and lock in skin moisture. Real silk has anti-static and friction properties that reduce the appearance of wrinkles and is great for frizzy, unruly hair, breakage, and hair loss. 【COMFORTABLE SLEEPING EXPERIENCE】: The pure natural silk material improves the silk pillowcase for contour pollow's moisture absorption and quick-drying effect. Soft and breathable fabric allows you to feel cool in summer. 【EASY TO CARE】: The back of the memory foam pillow case is designed with a zipper, which makes it easy to remove and keep clean. The silk pillowcase can be hand washed and machine washed without worrying about fading or shrinking. It maintains a silky texture and provides a long-lasting sleep experience. It is recommended to machine wash in cold water on gentle cycle and avoid exposure to sunlight when drying. 【HIGH QUALITY CRAFT】: The Silk Pillowcase for Memory Foam Pillow is specially designed for contour pillows and fits the contours of the pillow perfectly. Exquisite stitching allows you to enjoy a high-quality sleep. The exquisite packaging is suitable as a gift for family and friends to pass on this comfort. 【OEKO-TEX STANDARD 100】: The pillow case is OEKO-TEX STANDARD 100 certified, which ensures that no harmful chemicals are used in the production process of the pillowcase, making it environmentally friendly. The pure natural silk material enhances the moisture wicking and quick drying effect of the silk pillow cases. The soft and breathable fabric allows you to feel different coolness in summer.