Scientifically designed to give serious athletes that extra step Plyometric design with an extended Airlon Flexfit sock liner helps combine strength with speed of movement The pillar and platform SkyFlex shoe intensifies the effects of your workout and helps you achieve measurable reasults more quickly All-leather uppers, a shock-absorbing Rubberlon platform, and a special sock liner for added support and muscle protection Includes a pocket size comprehensive 16 page training manual Please specify size needed when ordering

Jumpsoles are the world's most popular 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 or your money back!