The silky-soft sateen weave pillowcase set is soft and comfortable against your skin, gentle on your hair, and made with our exclusive, sustainable ® fabric for a restful night’s sleep. Our fabrics are made from using our patented closed-loop process with food-grade, non-toxic solvents. This process produces a unique 100% lyocell free from harmful chemicals and plastics, unlike other viscose and /poly blends on the market.