The Tough1 Extreme Vented Horse Sport Boots provide 360 degrees of maximum protection. These sport boots for horses feature a suspensory sling strap that provides flexible fetlock and tendon support without restricting movement or inhibiting performance. The vented (perforated) inner and outer layers allow heat to escape while keeping dirt and debris out. These sport boots are made complete with super tough 'Quick Grip' closures for a secure fit every ride. The full set includes 4 sport boots for horses (2 front and 2 rear).