INSPIRED BY NATURE. INFORMED BY SCIENCE. MONOCHROMATIC TECHNOLOGY. Scientific research shows that stripes effectively prevent flies from landing on the horse. The ZEB-TEK fabric deters bothersome flies and biting insects , keeping them away from the legs to prevent discomfort and irritation. Specially designed in ventilated Air Motion 3D fabric for increased airflow and reduced heat build up. Stiffened vertical seams at the back of the fly boots keep them secure and elevated. Lightweight and ergonomically shaped, fleece bound edges ensure superior comfort whilst touch close straps allow secure fastening. Set of 4. 80% UV blocking, helping to diminish the risk of sunburn and sun bleaching.Effectiveness may diminish over time.