The Dirtbag® Hybrid is one of our "new generation" footbags. Two layers of cover material, trapping sand between them, gives this footbag the weight of a regular Dirtbag®. On the interior of the footbag we add plastic pellets to give the footbag plenty of loft when you kick it. Completely washable is an added bonus to this slightly oversized footbag. For those of us that do not love a sand filled footbag, this one is a great compromise between sand -vs- plastic pellets. Try one, we think you'll like it.