Every New Mac horse boot has a unique hi-tech performance outsole and incorporates the patented Hoof Suspension™ System. The New Mac is composed of a specially developed Thermo Plastic Urethane (TPU) compound which minimizes concussion and shortens recovery time for horses with concussion-related injuries. The New Mac is a great option for pleasure riding (less than 25 miles per week) and can also serve as a therapy boot. If your horse suffers from any of the following - arthritis, pedal bone fractures, navicular disease, ringbone, laminitis (founder), bruised soles, or scalping from overreaching–the New Mac horse boot will benefit your horse.