Newwiee breastmilk storage bags are designed to offer protection and store breast milk for several months. These bags feature double sealed side seams to prevent air from entering and leaking, ensuring safe storage in the refrigerator or while traveling. The small zipper can be torn open for easy pouring, avoiding secondary stains. The bottom support design keeps the bag upright, and it includes a writing area for easy recording of storage time and capacity. Made from PE material, these bags are lightweight, portable, and pre-sealed for immediate use.