100% That SUPERIOR QUALITY AND A RESTFUL SLEEP: Featuring 2 sides of 100% mulberry silk weighing 19 momme, this luxurious 20" x 30" satin pillowcase ensures a restful night's sleep with unmatched comfort compared to pillowcases standard pillow HAIR BENEFITS: Incredibly soft pillowcase is smooth to the touch, this 20" x 30" silk pillowcase reduces hair loss and makes it easier to detangle curly hair in the morning by limiting excessive friction during styling night YOUTHFUL SKIN: The natural proteins and amino acids in mulberry silk have an anti-aging effect on the skin, 20" x 30" silk pillowcases for hair and skin reduce sleep lines and smooth wrinkles in a way healthy, without dehydrating the epidermis WIDE RANGE OF SIZES AND COLORS - Find the right satin pillowcase for you; choose from 3 sizes (std 20x26, queen 20x30, king 20x36) and 5 colors (silver gray, ivory, taupe, pink, white pillowcases) - this elegant silk pillowcase with a hidden zipper and stylish design fits your bed covers perfectly CARE & HEALTH: Hypoallergenic pillowcase is OEKO-TEX certified and thermoregulatory for comfort that doubles as cooling pillows for sleeping; To preserve the silk fabric of the pillowcase from cooling we recommend hand washing in cold water or machine washing on a cold delicate setting, do not tumble dry