Add an extra layer of protection with a personalized touch. These reusable cloth face masks made of 100% Polyester provide a physical barrier around the face. They, however, are not medical-grade, thus, not meant for medical use. Great for everyday use for overall protection. .: 100% Polyester .: Adjustable nylon spandex ear loops .: Silicone adjustment beads .: Two layers of cloth .: One size