The fly mask is made of a fine protective mesh that fits over a horse's face covering the eyes and sometime the nose and ears as well. The horse can see thorough the mesh but flies cannot get past the barrier to feed on the discharge from the horses eyes. The fly veil or bonnet offers protection from irritating bugs while riding your horse. They are allowed in the jumper ring for showing and are great for everyday rides outside during fly season. They come in a variety of colours and are a fashionable addition to any horse wardrobe.