Give your taste buds a wake-up call. Our energy-enhanced Black Cherry flavor will keep you hydrated and caffeinated so you can stay focused and awake. This GoSip Flavor Cartridge is enhanced with energy and contains 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.