Dr. Brown's Breastmilk Storage Bags take the job of storing and protecting your breastmilk seriously! The Breastmilk Storage Bag's extra-durable design works overtime, with additional exterior trim to cushion in case of dropping. Double zip seals keep the air out while the super-thick material keeps the breastmilk fresh. The Breastmilk Storage bag features a gusseted bottom to hold the bag upright, or lay it down for simple storage. It's easy to use - just tear away the perforated top and carefully pull apart the zip closures. Plus, it's pre-sterilized and immediately storage-ready! Easy-to-read labeling allows you to add a freshness date and baby's name when they go to daycare. 100 individual 6 oz/180 ml Breastmilk Storage Bags. BPA free.