U-V Killer and Sport-Wash are two revolutionary products which eliminate the brighteners from your camouflage. They make your camouflage almost invisible to the keen eyes of deer and other game. First wash new or soiled garments in Sport-Wash. Then spray on U-V-Killer. U-V-Killer absorbs the ultraviolet light and literally kills the blue-white glow which animals and birds so easily see on untreated garments.