Prevent Sprain Socks - "The World's First Sock Designed to Prevent Ankle Sprains." Ankle Sprains are the most common sports injury as reported by the National Athletic Training Association. Scientifically designed by a Doctor & Physical Therapist, Prevent Sprain Socks help prevent & lower the severity of ankle sprains. In addition, Prevent Sprain Socks are great to wear for post game or practice recovery by increasing blood flow back to the heart from the ankles and feet.