Cotton, cotton polyester and man-made fiber can be used to sew pillowcases, but the most comfortable material is pure cotton fabric, which has good air permeability and moisture absorption, and does not irritate the skin. Modern people also like to use silk pillowcases, also known as silk pillowcases. Silk is a good thing and has many good reputation such as fiber Queen and soft gold. More than 97% of silk is composed of animal protein, which is rich in 18 kinds of amino acids necessary for human body. It is said that silk can clean and maintain the skin and increase the vitality of skin cells. This silk pillow is especially effective for sensitive skin, delicate skin of infants and young children and skin of the elderly. According to the introduction, in order to avoid silky smoothness and ensure the elasticity of the pillow, high elastic cloud silk is added. Besides the unique performance of air permeability, moisture permeability, smoothness and close fitting, it can give you refreshing cool and smooth natural super feeling, ensuring full elasticity and durable. With natural silk pillowcase, your delicate skin will be taken care of more carefully.