Official RPF (Reticulated Polyurethane Foam) Face Mask Reticulated polyurethane foam is a versatile open-cell material that is light weight, low odor and highly resistant to mildew and chemicals. Filter foam is specially adapted to air and liquid filtration, trapping particles within its cell structure. Description: Material: Reticulated Polyurethane Foam Tonal black official logo print Weight: 10g Color: Black Size: 8" wide x 5" tall (mask size) One Size