Playful cartoon kitties cover this mask as they play with their yarn. Our masks are made from 100% cotton and are 3 layers thick. The outer layer is pre-washed flannel and the inner two layers are unbleached muslin. Designed for comfort and protection, there is no metal in this mask so they can be washed and reused. Machine wash warm and tumble dry low to avoid excessive shrinkage. Adult and child sizes available.