DeMarini Voodoo OG Backpack It's game time. Head to the field with the DeMarini Voodoo OG Backpack, designed by and for ballplayers. Take your two go-to bats with you in a pair of neoprene bat sleeves and keep your cleats dry in a separate breathable shoe compartment. Padded shoulder straps and back paneling keep you comfortable as you gear up for battle.