These bags leak from the bottom when defrosting. I had no issues filling them and didn’t notice any defects until I started using my freezer stash. Very disappointing to have to throw milk away.

I have had multi bags leaking from the seams on the side. Wasting so much breast milk. I’ve tried different boxes from different stores. Will not use these bags anymore.

Doesnt even deserve one star, the bags leak! Thats NOT good! Every bag ive started to thaw out has leaked out atleast 2 or more oz....ill stick with medela next time.

This bag is really thin. I worked so hard to pump the milk and then it just leaked. I am going for parents choice again. I don’t know why I even got this bag.

I received these bags from Stellar Product Testing Program and I love them. They are easy to fill, easy to store in fridge or freezer, and very easy to open and pour!

I received these bags in my registry box, I generally like them as they do what they’re needed to do. I also tried two other brands and still come back to these.

These bags are fantastic! I switched from Parent's Choice when I had problems with leaks. The walls are thick and the bag itself feels super sturdy. I would recommend for any breast feedin' momma.

I love that these bags attach directly to my Lansinoh pump. I bought 100s of them because they were supposed to be the best. Turns out, they leak terribly. I lose at least 1-2 bags of frozen milk each week in the thawing process.

I've used these after having all three of my kids over the last 7 years and they are so much better than any bargain brand. They stay closed easily and I've never had any issue with any bags leaking.

We keep buying this brand to freeze breastmilk with as it’s the only brand we did not have issues with leaking when thawing the milk! Lays flat perfectly at 4oz. Haven’t tried filling it up more as we only do max 4oz bottles.