I am a donor and have used over 2000 bags from April to September with only 2 leaks which I thought was great. Then, the company changed the bags to a new design to be able to pump into the bag and since then I've had to check every single bag bc they will leak from both seams on the bottom along with holes on the top. It's disappointing that something used to store precious milk is so horribly made. I tried contacting customer service and they never got back to me. Ok to buy but don't trust them and check for leaks asap so you don't lose milk.

I was lucky to receive these bags from the Stellar Product Testing Panel. I initially liked the idea of having bags that could be adapted to use with a pump, without having holes in them like some other bags, which makes it a lot easier for pouring. In the end though, it came down to feeling like more of an inconvenience and just didn't live up to using bottles. While using as just a plain old regular breast milk storage bag, there is little to complain about. I used to receive donor milk with my first child, and I recall that the Lansinoh bags leaked quite often. These ones though seem like a great improvement in durability, and I have yet to experience (and don't anticipate to) any leaking. They however do not freeze as nice and flatly as other brands I have used, though this is not a big deal at all. Speaking specifically to the pumping feature: This feature fell flat for me in several areas. I did not like being unable to set the bags down after pumping, with the pump parts still attached. That was a large inconvenience for me, however they do stand well on their own without the parts attached. While the bags were easy to attach and did fit snugly on my pump there was still some milk that worked its way up the sides between the pump and the bag (see photos), which was a little bit messy. The "grip" on these are really strong and I didn't feel worried at all that the bag would fall off. One thing I also tested was the accuracy of the measurements. They were consistently about 1/2 and ounce off from the readings on the pump bottles. So if you're just looking for a decent and reliable bag, this one feels like as good of a choice as any. If you feel like having the option to pump directly into the bag, this probably won't be so bad if it's a method you enjoy using, all things considered. I would just recommend having a bottle nearby for checking the amount pumped, if you are concerned about the accuracy of it.

Thanks to the Stellar Product Testing Panel for providing me with this breastfeeding accessories. Throughout my breastfeeding and pumping journey I used the Lansinoh breastmilk storage bags. Overall, I was extremely satisfied with them. They are pretty durable. I only had one or two bags get a hole in them after they were frozen

To all the ppl complaining about leaking bags, i have to ask if they made sure to lay the milk bag flat when freezing to allow room for the milk to expand? And also if they made sure to not fill past 6 oz? I have only ever had one problem with my milk leaking when thawing but noticed it was due to rough handling of the frozen milk bag. Otherwise I have never had a problem. Just try to keep a designated container to store the milk upright once frozen and handle the milj with care would be my advise. Other than that I find these bags durable for the most part just dislike that when the milk is not frozen, it tends to be super flimsy since the plastic is more on the thinner side, but that is a minor complaint.

I received a box of the Lansinoh Breastmilk Storage Bags from the Stellar Parent Panel. I was very pleased with these bags- their ease of use, durability, and storage. Even just to the touch I could tell that these bags were durable and sturdy- they would not break or tear easily. The perforated portion at the top came off easily when I was ready to use them but I loved that it was there to prevent any opening that may invoke contamination before I used them. I was pleasantly surprised that they just fit onto the pump without any additional attachments. They fit snugly and easily onto the pump to collect the milk directly from the pump. The bags had ample room for information about the contents (a date, volume, name, and time) which allowed me to organize and store breast milk easily. The bags held 6 oz/ 180 mL so there is plenty of storage, but I can easily fill less than that and still have a tight seal for storage. I had no doubts that, when I laid these bags flat to freeze, that it would leak. The ziploc top sealed tightly and nothing came out when the bag was laid down. I have no complaints about these bags and I am very glad to have them to securely store my pumped milk. (As an side, I have even grabbed these bags to put a small snack in for my kids. Ha!)

The Lansinoh Breastmilk Storage Bags are made of a very durable plastic that is easy to open and close and allows me to squeeze out all the extra air for a nice seal. I like the double zipper closure which makes sure there are no leaks. I also like how I can freeze the bags flat so this saves so much room and the frozen bags are easier to stack.I love how there is a free adaptor to pump directly into the bags- so this allowed me to wash less bottles at the end of the day. I have tried out 2 other breast milk storage bags and I would have to say the Lansinoh Breastmilk Storage Bags are still my favorite. My favorite feature is the ability to freeze-flat which saves room in my freezer. Thank you to the Stellar Product Testing Panel for providing me these breastmilk storage bags to try.

These breast milk freezer bags are great. My Granddaughter was just born 2 weeks ago & my daughter is breast feeding. ALOT of different item's come with you pump look them up. We bought all the extras for it and also these bags for storage or freezer safe. Makes feeding time so much easier on my daughter, so she can rest and I can feed my Granddaughter!!

Thanks to Stellar Product Testing Panel, I was able to try out these breastmilk storage bags and pump attachment, and I wish I would have known about them sooner! The bags are great, freeze flat, pour easily, thick plastic - but the game changer is the little adaptor piece that attaches to your pump so you can skip washing a bottle!!!! This probably cuts down a third of the bottles we have to wash everyday, how did I not know about these sooner!!! The only flaw I see is that I will probably go through more bags because I'm not pumping a full 6oz each time, vs filling the bags full with prepumped milk - but that's a small flaw considering the time I save washing pump bottles!

I'm a big fan of these storage bags. I was fortunate to try them out as a participant in the Stellar Product Testing Panel. These bags are by far superior. They are a durable thicker material than most and I have tried a few brands. They bags freeze well too - I always put on a flat surface in the freezer so the freeze flat and are easier to store! I loved the double closures too - a must have for any mom!

As a third time pumping mom, I find these milk storage bags to be far superior to other brands I have tried. The pump adapters allowing me to pump directly into the bag is a huge plus! It is easy to set up, saves time from washing extra parts and anything that saves time is a huge win in my book. They freeze flat, the bags dont break or leak after thawing and pouring into bottles is spill free. Thanks to the Stellar Product Testing Panel for gifting me these milk storage bags, I have found my new go-to milk bags!