Our Mask is made of Cotton. The size is 5"L X 7"W. Body: 100% Cotton, 4 Layers Binding And Ear Loop: 95% Cotton, 5% Spandex. This fabric face mask serves as a barrier. Ultra-soft jersey fabric makes this one-piece face mask comfortable and breathable. A one-size-fits-all design with two ear strings and a contour shape makes the mask more versatile for many different face sizes and shapes.