lansinoh breast milk storage bags

Each Lansinoh breast milk storage bag is sized to hold 6 ounces of milk.

The bags use a double zipper, reinforced double-sealed side and bottom seams, and a tamper-evident fully sealed tear-away top. They also come presterilized.

They’re designed to freeze flat to maximize freezer space and promote quicker, more uniform thawing; the lay-flat design supports faster and more efficient thawing.

Common package counts are 25, 50, and 100 bags.

You can pump directly into the bags using a Lansinoh pump or most major breast pump brands. Lansinoh sells a pump-into-bag adapter separately, though some buyers have reported finding adapters included with certain packages—check the product listing or package contents to confirm.

Customers commonly praise the reliable seals with minimal leaks, easy filling and pouring, sturdy plastic construction, good freezer performance, and the flat-freezing design.