Jumpsoles - Increase your Vertical Leap! - Vertical Jump Shoes / Jump Sole
All of the sizes noted are in MEN'S.
Jumpsoles are the world's most popular plyometrics frontal training platforms which attach to your own shoes. By training with Jumpsoles you will build up important fast twitch muscle fibers in the lower leg. Jumpsoles will increase vertical jump 5 to 10 inches, and decrease time in the 40 yd dash by .2 seconds Comes complete with training manual.