Sawyer Permethrin Aerosol Clothing and Gear Insect Repellent - As a clothing, tent or sleeping bag application, Permethrin is very effective at keeping ticks from attaching to you and at reducing the mosquito population in your camping area. Permethrine is different from other insect repellents in that it is applied to your clothing and gear BEFORE you head out into the woods. The effects last through up to 6 washings. And unlike Deet, it is safe for use on synthetic fabrics and your skin without irritation. Comes in a convenient aerosol can. 9 oz. canSafe on synthetic fabricsLasts up to 6 washes