About Us

Cloud 9 Sports LLC, of which DynamicSpike Volleyball is a part, sources and sells interesting and innovative sporting good products from around the world. Our goal is to help athletes of all shapes and sizes, whether serious or recreational, perform to the best of their abilities… and most importantly, have fun!

The DynamicSpike Volleyball hitting trainer is one such product. Originally called the PowerSpike, the DynamicSpike Volleyball hitting trainer is a lightweight, portable volleyball hitting trainer / spike trainer that helps players of all ages improve their volleyball skills and build confidence.

We hope you will give the DynamicSpike Volleyball hitting trainer a try, and join our growing list of happy customers! (Check out the testimonials.)


–Jeff Rupp, proud volleyball dad, Double-Goal® rugby coach, alpine skiing enthusiast, and owner of Cloud 9 Sports LLC

With daughter Julia, my inspiration and volleyball advisor ;-).


Julia and Jeff skiing at Beaver Creek in 2017
Jeff's team wins the 2016 Tier II Boys High School Rugby National Championship
Jeff skiing on a Snowbasin powder day