I've read several things that basically say that any of the scent blocking clothing is total BS. We have several folks from the Arm Forces on the site who may be able to add to this... But one of the best things I read was based on comparing Scent Block clothes to military (I believe they were bio suits) that use activated charcoal. They article basically explained how long the military formula lasted and then compared them to scent lock stuff. Bottom line was that the scent lock stuff could only be effective for a minuscule amount of time.... literally a few minutes if I remember correctly. And there's no way they can be recharged as the manufacturer claims.
That being said there do seem to be some eliminator sprays that have some science on their side. Some of the sprays that use enzymes or anti bacterial agents have been shown to eliminate smells to a degree. Some of the analysis on the scent blockers shows them to be nothing more the soap & baking soda solutions though.
1) watch the wind!!!!
2) avoid things that will make your clothes stink
3) keep yourself clean and odor free
4) hang your clothes out doors
5) use a reputable scent blocker
6) avoid things that make you stink (food, tobacco, drink, etc)
