The Fly Buster is treated with Permethrin for superior protection to control mosquitoes, ticks, ants, flies and midges. The active ingredient Permethrin is chemically bonded to the fabric so that it remains effective for up to 20 washes. It is made from soft but strong mesh outer, is ultra breathable, and features shoulder liner, Patented Leg Arches™ and 3rd surcingle, Patented "V" front closure, a supersized tail flap, and a separate neck cover with mane liner included.