The Back on Track Therapeutic No Bow Leg Wraps are a cotton/polyester blend material that utilizes our Welltex technology to reflect your horse's own body energy to create a soothing far infrared thermal effect. When you use our No Bow Leg Wraps, the unique material may help to decrease swelling and help keep your horse's legs cool and tight. Horse owners use the Back on Track No Bow Leg Wraps for injury prevention or recovery. They should be used with Quick Wraps after a strenuous ride and left on overnight after the initial introductory period. These wraps are also great to use when shipping your horse.