Store, transport, and warm breast milk in these convenient, ready-to-use breast milk storage bags. Medela Breast Milk Storage Bags - 6oz/180ml, Clear with Measurements, 68062, 100 Count are constructed from durable, double-layer material and built-in double zipper seal to keep your breast milk safely stored in the fridge or freezer. For added convenience, the bags are self-standing and come with a large write-on area so you can track the date and other important information. A BONUS Resealable transport pouch is included to help keep the bags clean and organized.