Medela Milk Storage Bag is a bag that helps to conserve, transport and heat breast milk. Easy to use, it allows you to store extra breast milk in the fridge or freezer. Flat to save space and double zip for safe storage. Of heat-sealed seams to prevent tears, cracks or cracks. With large zone for easy labeling and date identification. Freeze-resistant, allows quick defrosting. Includes a carrying bag to keep bags clean and organized.