NAGBag equine tail bags are lightweight and waterproof; protecting your horse’s tail from the elements such as mud, dirt, urine and poo. They help eliminate breakage when swatting nasty flies, keep conditioning product in and promote hair growth all year long. NAGBag’s come in a variety of fun colors and patterns are durable and machine washable. I hope you try one out and if you like it, tell your friends.. Please indicate color preference when ordering.