Soft, heather-grey flannel with kitty faces is the top layer of this comfortable to wear mask. Made from 100% cotton, the outer layer is flannel, and the back two layers are made from unbleached muslin. Being made with fabric only makes them comfortable to wear while still hugging your face for safety. Machine washable and reusable. Machine wash warm and tumble dry low to avoid excessive shrinkage. Adult size only on this one because of the size of the print.