Hey. Clinical studies show that for the good functioning of the body, you need to drink at least two liters of water per day. Cirkul decided to help people in this direction and developed a special water bottle that helps to drink more fluids every day. It is worth noting that with each change of cartridge, your water will acquire a new and amazing taste. If you decide to buy a bottle of cirkul then you can do it in retail stores of large retail chains or order it on their website.