Dual effectiveness: the most powerful and long lasting defense against flies. Treated with No-Fly Zone Insect Control Technology. No-Fly Zone technology converts gear into long-lasting, effective and convenient insect protection. Fabric is treated with the active ingredient Permethrin and is odorless and invisible. No Fly Zone remains effective for 70 washings. Proven to repel mosquitoes, ants, ticks, chiggers, flies and midges. Includes super size tail flap and extra deep sides for optimum belly protection. Oatmeal/Black & White.