Not a bad idea at all. Hope you'll post more info on where you got this garment. If you are wearing enough DEET that it's actually making you sick - that's not a good sign. I also use 100% DEET (aka Jungle Juice), but I don't put the stuff on my skin. I rub it on the cuffs of my shirt and pants, around the neckline of my shirt, and on the brim of my cap. Still seems to work OK.

Pete2