Activated polymers bring cooling relief along with fire resistant protection. Soak in water for 2 to 5 minutes to activate. Remains hydrated for up to four hours. Re-usable, just re-wet. Made of a modacrylic cotton blend fabric. Apparel Type: Cooling Bandana; Material(s): Modacrylic Cotton; Polymers; Color(s): Lime; Color Family: Green.