All in one Combo rug with attached Hood. The fabric is impregnated with permethrin based insecticide. The fabric holds and binds the insecticide and does not wash off with rain or sweat. The fabric remains effective for the expected lifetime of the product. For horses that are allergic or sensitive to insect bites, aids in prevention of disease carried by mosquitoes and other biting insects. Prevents secondary skin infections from scratching.