Keep yourself hydrated while doing any outdoor sports. Take your favorite drinks to outdoor activities. Bring your own beverages anywhere you want. Perfect for any beverages, these packaging bags are designed to stand upright when full and can be folded, rolled up, or laid flat when empty. Features -Color: Transparent -Material: PA, Liquid PE film -Size: 21.00X12.00X2.00cm/8.25X4.72X0.79in -Capacity: about 410ML - Our bags are food-grade which are made of safe and environmental-protection material. - The screw caps can seal the bag tightly and no liquid leakage, flexible and . - The stand-up bottom allows the bag can stand firmly on a table, can store more liquid. - After filling the beverage, the bag can be heated in water or be stored in the refrigerator. - They are suitable for storing tea, milk, juice, soybean milk, milk tea and other liquids. Package list: 12 x