The Ultimate Sports Boot helps in the prevention and rehabilitation of bowed tendons, sore muscles, hyperextension of the fetlock, ligament injuries and all affected lower leg and joint problems. Two parallel support tubes properly positioned on the back side of the cannon bone provide excellent ligament and tendon support. The lower strap provides upward support of the fetlock. This helps to relieve stress on joints, ligaments and tendons during training and exercising. Three hook and loop closure.