Limitless

​Limitless sparkling water has 35 milligrams of caffeine, no sugar and zero calories. The canned drink comes in Grapefruit Hibiscus, Cucumber Pear, Watermelon, Ginger Mint, Blood Orange and Lemon Lime flavors. Chicago-based Limitless Coffee, which, at least until now, has been producing cold brew coffee, matcha tea, and coffee beans, has made a jump into the flavored sparkling water category. In this case, they are doing it with a product that is juiced with caffeine extracted from coffee beans.