Personalize Your Drink Easily change the fizz, function, flavor, flavor strength, and drink size to your liking.

Choose Between Still and Sparkling Select still water or choose from three different levels of sparkling water.

Fill Any Cup Choose from four different cup sizes, including 6oz, 12oz, 18oz, and 24oz, and pour it into any cup or bottle.

Select a Flavor Choose a flavor and how strong you want it to be, or keep it plain.

Mix and Match Flavors Combine two different flavors to create something new and unique that you can't find in stores.

Endless Flavor Options Try four exciting flavor lines: Splash, Vitamins, Hydrate, and Energy. Each line is 0 calories* and 0 sugar* (*per 12 Oz classic serving), and naturally flavored with other natural flavors.

Easy CO₂ Refills The CO₂ canister is easy to install and refill. It's specifically designed for the Ninja Thirsti to provide more efficient carbonation compared to the leading competitors.