Kindred Bravely Breast Milk Storage Bags BPA Free Pre-Sterilized 6 OZ 100 Count Durable, no-leak material - bpa-free, reinforced, no-leak material means you won't need to worry about tears or holes in your breast milk storage bags. The double zipper securely seals milk inside the pre-sterilized bag. Six ounce capacity - store up to six ounces (180 ml) of breast milk, and keep track of your stash with accurate measurement markings and a write-on label. Convenient design - our breast milk storage bags feature a flat bottom so they can stand up for easy filling. Then, lay them flat for compact storage in the fridge or freezer. Pre-sterilized, hygienic bags - these milk storage bags for breastmilk are pre-sealed and pre-sterilized, so they are ready for immediate use. Rest easy that milk is stored in food-grade, bpa-free disposable milk storage bags. Pumping mom essential - these convenient, cute breast milk storage bags are a nursing mom must-have. These bags are easy to use, transport, store, and warm, and they're compatible with all major breast pump brands New in box.