At PG, the assortment is small and curated on purpose. You can be confident that everything that is marked with the PG brand is best-in-class. Our PG 600 Thread Count, 100% Micro-TENCEL Pillow Case is unmistakenly luxurious and environmentally savvy. The TENCEL lyocell fibers are also gentle to the skin with a silk-like feel. The microscopic surfaces of the fibers are smoother than even Modal, Cotton, and Wool.