Whether it's game day or leg day, our Mixed Berry flavor has the electrolytes you need to help push through your most rigorous workouts. This FitSip Concentrated Flavor Cartridge is enhanced with electrolytes and has zero sugar, zero calories, is dairy-free, and has no artificial flavors or colors. We understand that drinking enough water can be challenging. At Cirkul, our mission is to make drinking water delicious, convenient, and fun.