Demarini Vexxum-5 Baseball Bat From the hottest fires forges the strongest metals: X10 Alloy. Time to turn up the heat and light up the scoreboard. X10 Alloy was designed with a proprietary In Chaos, DeMarini Found Strength: TR3 F.L.O. TR3 F.L.O (Fused Layer Optimized) Composite is a cutting edge formation of DeMarini's TR3 composite. As if it needed an exclamation point: N2M End Cap. There is always a little extra room to pack in some more domination.