I have a buddy who bowhunts around 50 days a year and swears by it. He says if your gun or muzzy hunting forget it due to the smell of gun powder,oil etc... I don't believe it can possibly work as well since deer can smell so well and since most of your scent comes out of your mouth and the portion around your eyes you don't cover. I even talked to a scent loc employee and he said you only need the long underwear. What bugs me the most is when hunting celebrities are always touting them. I also laugh when they spray down with scent killer and miss 3/4 of their body. Even if it worked you would need to soak every square inch of your body and equipment.