Permethrin is used to treat clothing and gear.
Buhner has a recipe for a tick repellent in his new Lyme book that is 99% effective.
It incorporates grain alcohol and 8 different essential oils - one of which is very expensive yet he says vital to the level of effectiveness.
Insect Shield sells permethrin-treated clothing that is effective through the life of the garment (70 washings):
www.insectshield.com/I use all of the above and joke that, when I go out to garden, I'm dressed in my hazmat attire ;)