Durvet DuraMask Equine Fly Mask, Yearling Durvet DuraMask in size yearling protects young horses from flies and other biting insects Write on name tag makes identifying horses simple Our horse fly mask comes in a rubfree design with all edges trimmed in fleece Superior eye dart stitching allows you to give your horse clear vision safely and comfortably DuraMask equine fly mask is built to stay put with extra reinforcement and a double locking fastener hidden under the horse's jaw