Milk storage bags are specially designed pouches used for storing breast milk. They are typically made from food-grade plastic and are designed to be leak-proof and durable. These bags often come with pre-printed measurement markings, making it easy for parents to track the amount of milk stored. These bags can be sealed tightly to preserve the freshness of the milk and are usually freezer-safe, allowing for long-term storage. Many brands offer bags that are compatible with breast pumps, enabling easy transfer of milk directly into the bag. This convenience helps parents manage their milk supply efficiently.