nick, true story, i had some of that ben's 100% deet in a bottle that i kept in the front of that chestpack. one time i used some of the deet and apparently didn't put the top on tight enough. put it back in the chestpack and when i emptied the pack later i found that the deet had eaten through the vinal dividers separating the compartment in the pack! and to think i put that stuff on my skin--no wonder i'm losing (lost?) my hair!