Blue Razz Energy Drink
From the producer:

Bang® is not your typical sugar-filled, soul-sucking soda masquerading as an energy drink. If it’s just a jolt of energy you want, have a candy bar, wear a tinfoil hat in a lightning storm, or try one of the other “energy” drinks on the market. But if you’re looking for something to fuel your next workout or hike, if you want sustained energy, as well as peak mental and physical performance, Bang® is the energy drink for you! Every 16-ounce can of Bang® — that’s right, no wimpy 12-ounce cans here — contains 300 milligrams of caffeine, which has been shown to increase endurance, as well as strength in some cases. Even better, Bang® is sugar-free and has ZERO calories — yet it tastes great! 

About Bang:

Bang energy drinks deliver a safe, sugar-free, carb-free, crash-free, great-tasting, sustained energy beverage experience.

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