This 2019 EST COMP XL softball bat comes with a half-ounce endload which will provide you with extra power to get your hits to the warning track, over the fence. Worth uses CF 100 Carbon fiber construction which provides the perfect combination of feel and performance. The four-piece design and the CF 100 material ensure a high-quality bat with top quality materials. An added bonus, the four-piece design helps generate more power even on mishits due to the flexibility of the barrel. Worth Sports: Performance Through Technology.