Jumpsoles are the world’s most popular tool for increasing your vertical jump. Jumpsoles are plyometric platforms that attach to your shoes. Jumpsoles focus your body weight onto your calves and train you to spring off the balls of your feet like a powerful cat. By doing the special plyometric exercises in the video you develop fast twitch muscle fibers in your legs for explosive leaping. Used by slam dunk contest winners and top pro & college teams, Jumpsoles are guaranteed to boost your vertical jump 5 – 10 inches. (individual results may vary).