The Old Mac Generation 2 (G2) horse boot is a unique high-tech performance boot manufactured from a specially developed Thermo Plastic Urethane compound that helps speed up recovery from concussion-related injuries, so if your horse suffers from Arthritis, Pedal Bone fractures, Jarred Shins, Navicular disease, Ringbone, Knee fractures, Bruised soles or Hoof Wall problems, then the G2 will benefit your horse. They can also be used as a replacement for shoes where a barefoot horse is required to ride over stony or uneven ground. Offering excellent support, grip and cushioning Old Mac G2 Boots helps prevent injury to the Coronet during transportation and is the only time these boots can be used over standard metal shoes. Easy to fit the Old Mac G2 Boot has the following features over the original Old Mac Boots * Steamlined design * New tread pattern with natural breakover point. * Front shield protection to help prevent wear * Padded Collar area with single fastening buckle * New boot shape and sizing enables more horses to wear boots comfortably * Rear boot now incorporated into the sole. * Supplied compete with Pastern Wraps * Inserts available Click the i button for Old Mac G2 Boot sizing Old Mac G2 Boots, Pastern wraps and Inserts are sold in pairs.