drink pouch
A plastic and/or metal foil pouch used for beverages. These pouches are fully-sealed, unlike a drink bag, and feature either a spout or require a straw to puncture the pouch to drink the contents.
In the United States the drink brand Capri-Sun is noted for their aluminum-foil drink pouches. In Asia there are a lot more types of drinks available in this packaging, such as jelly drinks.