PRICES MAY VARY. 100% MULBERRY SILK: THXSILK pillowcase is made of 100% long strand, Grade 6A+ Pure Mulberry Silk, which is smooth, soft and antistatic, maintains the balance of skin moisture. Compared with satin polyester, pure silk is a more organic fiber with relatively low carbon footprint, low soil and low land impact. It is composed of animal proteins and contains 18 kinds of Amino acids that are believed to effectively improve skin conditions. BENEFITS FOR HAIR, SKIN AND SLEEP: A…