Create your own reusable customized face mask for boys or girls. 4-12 year old kids! 2 ply Polyester / Cotton. Blank or imprinted with 1 or full color sublimation. High quality protective Washable Face Masks. Great protection for children. Made of high-quality blend of polyester and cotton to help against dust, viruses and airborne pollutants. Very breathable and easy to wear.