XS Energy Drinks deliver a powerful punch of B vitamins to help boost mental and physical energy. Formulated with B vitamins to help boost mental and physical energy. All of the energy with none of the sugar or carbohydrates -- and less than 8 calories. Make amazing XS drinks your choice for a rocket-powered lift without empty calories and sugar. The winning bidder can choose from 12 different flavors including 3 caffeine free varieties. Flavors include: Cola, green tea, tropical fruit, lemon, root beer, and black cherry cola. Caffeinated versions contain approx. 83 mg of caffeine. Twelve 8.4-oz. cans per case.