The 5150 VELO features an incredibly lightweight design and thinner walls to help players develop their swing speed and hit the ball further. The VELO is made from Rawlings 5150 Alloy that features unmatched durability that provides 10x more strength than traditional alloys. This allows Rawlings to make the barrel walls much thinner to produce a lighter swing weight. But that's not all. Thinner walls also allow for increased barrel flex that results in some of the best trampoline effect of any alloy bat in the game.