Nanobebe's innovative and modern breastmilk storage bags are designed to prevent both spillage and spoilage and protect your precious milk. Designed to hold milk in a shallow layer, they cool and thaw quickly, reducing bacterial growth and preserving nutrients. Nanobebe's breastmilk storage bags are durable, leak-proof, made from extra-thick plastic and feature a double-zipper. Store them in nanobebe's freezer organizer, which enables hygienic and space-saving storage and helps you to track pumping order and maintain a "first in, first out" policy.