I think it's a TOTAL waste of money. There is no way to keep the clothing scent free over a long period of time. Maybe they work when you first buy them, but after that, I do not believe they work. As the studies have shown, there is not way to reactivatethe carbon. additionally, there are too many variables for them to remain effective over1...2 ora 3year period.Sorry,I'm not that meticulouswith my clothes that I worry about keeping my them totally sealed when I return from a day of hunting, let alone after a couple of years.Thisis EXACTLY what Scent-lok expects.This way we buy more of their product because it's our fault it's not working anymore.Who would actually go after a refund if you used it for a season...NOBODY! In my opinon, They need to show more proof, oh yea one more thing....close the loop-holes in your so called "guarentee" and MAYBE you'll convice a few more ofus. HUNT THE WIND!