Limited-edition design 100% Composite Design Patented S1ID™ Barrel Technology provides maximum pop on contact iST™ Xstiff technology - 2-piece construction with a stiffer feel for increased energy transfer Certification USSSA, ISA, NSA, ASA, ISF. he most popular bat in fastpitch softball has gone Platinum. In a special limited-edition release, Louisville Slugger has created the XENO Platinum – a one-of-a-kind design on the one-of-a-kind bat that has changed the game. Still built with the cutting-edge technology expected from the XENO line – two-piece construction, 100% composite with a stiff IST connection for better energy transfer and less sting – this bat is being sold in limited quantities for a short time only. The value of Platinum has never been higher.