Dye Sublimated Face Masks are perfect for decorating and personalizing your own face masks. The mask has 2 layers, with a cotton interior and polyester exterior that is perfect for dye sublimation. It is stretchy and will fit most. It is washable and can be worn again and again. Why Wearing A Face Mask Is Important?Wearing a face mask will help prevent the spread of infection and prevent the individual from. Complies with Prop 65. 6.69" L