Keep bugs away from your clothing, tents, sleeping bags, and other outdoor gear with fabrics with Sawyer® Permethrin Insect Repellent for Clothing. The active ingredient, Permethrin, is a synthetic molecule similar to those found in natural pyrethrum which is taken from the chrysanthemum flower. Not only does it repel insects from clothing and other fabric products, but it will actually kill ticks, mosquitoes, chiggers, mites and more than 55 other kinds of insects. Permethrin is a contact insecticide which is non-toxic to humans. 24-oz. spray bottle for easy application. A single application bonds with the fabric to last up to 6 washings.