[Lily silk pillow case does not contain harmful fabric] The top is made of durable Momme fabric the bottom is made of 40-60 tex white cotton. Mulberry silk is a natural textile fiber, which contains protein, so it is similar to our skin. An important advantage of silk mats is that they are suitable for allergic patients and children who are sensitive to chemicals. YKK zipper allows easy insertion and removal of cushioning pads. [Lily silk pillowcase keeps your face clean] Because silk is very similar to our skin, silk pillowcase can reduce stress and delay the aging process during sleep. Silk can keep skin's natural moisture during sleep. This means that your night cream and all the other things you put on your face at night will really stay on your skin and provide it with important nutrients throughout the night. [Lily silk pillowcase made of silk can offset bifurcations] The mulberry silk pillowcase can prevent hair tangles, thus preventing hair from breaking and bifurcating. In particular, women with curly or long hair will appreciate the next advantage: no matter how violently you move in bed, when you turn around in bed, your hair will be straight when you wake up in the morning. [Lily silk pillowcase is actually easy to care] Silk is an exquisite fabric, but it is easy to care. If you choose silk sheets, you should follow some basic rules. First, always wash clothes of the same color together. When washing hands, the temperature shall not exceed 30 C. The washing machine is running very slowly. It is particularly important to avoid silk staying in water for too long or drying in a drum dryer. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.