Active Ankle Systems Inc. of Louisville, Ky is a leading manufacturer of ankle braces used by professional and amateur athletes of all ages. Active Ankle is a worldwide leader in the development of high-value, high function ankle and foot products. Athletic trainers, physical therapists, podiatrists and orthopedic physicians use the Active Ankle brace for athlete and patient care, injury prevention and in their rehabilitation protocols. Active Ankle is the official ankle support supplier and sponsor of USA Volleyball.