Fly Boots - Great protection and peace of mind for your horse. Fly boots help keep your horse from injuring himself/herself due to biting flies. Horses can get very annoyed when flies are biting them. They stomp, kick, and sometimes trot or run to get away from flies. For sensitive skinned horses it is even worse because their legs will bleed from the biting flies which will attract more flies to them. Help protect your horse and keep him/her at peace during the summer months and pick out your fly boots today.