overall the bag freezing flat is amazing but when going to thaw the bags aren't so great. I bought them at the very end of February and had just started to officially use them. as im thawing the bags I noticed water actually got in through the seals as well as the bags having mini punctures. Unfortunately Ive had up to 40oz of my breastmilk thrown away since each bag once thawed would get water in it.

Stack well. Plenty of room to write important details.

I love that you can pump directly into these, it is so convenient and allows me to not have to pump into bottles creating extra work for me. They pour pretty easily into a bottle after being thawed, too. I will repurchase these again and again.

This breastmilk are my go to. They don't leak or bust when freezing or defrosting. I can defrost them both in a pan on the stove or my bottle warmer with no issue at all. I also really like that they have a double zipper seal and I can put directly into them if I want.

The bags get busting in the bottom corners of the bags! I freeze them and then thaw them out and lose over half my milk because they somehow busted!

this item does its job hold breast milk. the issue i had with these was that they would get holes in bag when dethawing under water. also flimsy when pouring milk in them..

My baby has been in the NICU for a month now, and I switched to these bags recently. Lactation told me my bags are exploding and to change brands. They see this happen consistently with these bags because of how thin they are. I had to throw over half of the box away because I don't want to keep wasting my milk.

Everrrrrry box that I buy has bags that leak at the seams. It doesn't matter where I buy them from. Seems to be an issue across the board.

It leaks when being thawed, 3/3 bags so far. absolutely awful quality for something supposedly name brand.

I used these bags to store breast milk while exclusively pumping for five months. As an oversupplier, I had a significant amount of milk to freeze, and initially, I had no issues filling or storing the bags. However, now that I've begun using the frozen milk, I've discovered that many of the bags have developed holes and are leaking. This is incredibly disappointing and unacceptable, especially considering the time, effort, and care that goes into pumping and storing breast milk. The loss of this milk is devastating—it represents countless hours of work and cannot simply be replaced or measured in monetary terms. I truly believe this is a serious quality issue that warrants attention from Lansinoh, as it has resulted in a substantial and meaningful loss.