(Professional's Choice) Made out of a heavy duty, uniquely breathable and UV-protective nylon mesh that resists stains and wrinkles. The contoured shape and 3 adjustable hook-and-loop straps ensure a perfect fit without over-tightening. The nylon binding and reinforced webbing down the back keep the boot from sliding down the horse’s leg while fleece lining ensures optimal comfort. Polyester rip-stop technology makes mesh extremely tough and durable. Fly Boots come in a 4-pack to provide complete protection. 30-day, money-back guarantee.