H.S. Bio Strike Field Spray - Independent laboratory studies prove Scent-A-Way(R) Bio-Strike(TM) is twice as effective as the leading competitors' premium sprays at controlling REAL-not replicated-human odor. Its revolutionary formula, featuring patented NanoShield Technology with oxidizing silver NanoParticles, eliminates odors and inhibits further odor development for up to 30 days or more. In an independent laboratory study of its effectiveness on seven different odor-causing sources, Bio-Strike proved to be 99.99% effective-twice as effective as other leading scent-control products on the market.* Non-ToxicWon't stain clothes or gearColorless and odorless12 oz or 32 oz