Louisville Slugger 2012 TPX (-3) Z-1000 Baseball Bat S1iD Inner Barrel Disk Technology allows the barrel to flex to the maximum allowable .50 BBCOR performance level with no break in time and is game ready right out of the wrapper LS-2X Composite Technology utilizes a higher strength, lighter weight, thinner graphite fibers allowing a thinner wall for the lightes composite BBCOR bat on the market LS-2X composite absorbs vibration with "no sting" on off sweet spot hits. The best performing BBCOR bat on the market due to a balanced swing weight and thinner lighter graphite fibers. Top College Coaches are saying the Z-1000 BBCOR composite bat is the closest to any BESR bat in terms of performance, balance and swing weigth and pop.