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Lansinoh

Lansinoh Breastmilk Storage Bags, 6 Ounce, 100 Count

  • Based on 94,743 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Sep 9
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Size: 100 Count


Style: 6oz


Features

  • SUPERIOR STRENGTH & STRETCH: Lansinoh's breastmilk storage bags are designed to expand with your milk as it freezes, for stronger, more reliable milk storage
  • FAST FREEZE & THAW DESIGN: Lansinoh breast milk storage bags freeze flatter than leading competitors so you can store more breastmilk and thaw super-fast. Efficient and uniform thawing protects your breastmilk nutrients
  • SAFE BREASTMILK STORAGE: Our storage bags are presterilized, made without BPA or BPS, and designed with a tamper-evident, fully sealed tear-away top for safe milk storage
  • SUPER STRONG & DURABLE: Each Lansinoh milk bag for breastmilk has reinforced double sealed seams on the side and bottom, plus double zipper for ultimate protection
  • SAVE TIME: Pump directly into the bags using your Lansinoh breast pump or most major breast pump brands using our pump-into-bag adapter (sold separately) and your pumping bra
  • COMPACT STORAGE: Lay flat to safely freeze and maximize milk storage; Stand in the fridge for compact, easy storage, or pour into baby bottles. Lay flat design helps optimize space inside breast milk storage bags freezer
  • CONVENIENT 100 COUNT PACKAGE: This package includes 100 breastmilk storage bags with 6 ounce capacity each, providing ample supply for your baby feeding and milk storage needs

Description

Trusted by parents around the world, Lansinoh’s 1 selling breastmilk storage bags are ideal for storing, freezing, and protecting your precious breast milk. Built super strong, Lansinoh's breastmilk bags come with a double zipper seal to help prevent leaks and reinforced double sealed side seams for ultimate protection. Presterilized for safe storage plus BPA and BPS free. Simplify your routine and save time by pumping directly into the bag with these newborn essentials must haves. For nearly 40 years, new mothers have trusted Lansinoh to support and care for them while they enter the messy magic of motherhood. Born from one mother’s realization that birthing people often go without the support they need and deserve, Lansinoh proudly stands with mothers all over the world. Our journey started with award winning, doctor recommended HPA Lanolin Nipple Cream: today, we offer a comprehensive collection of solutions to help new parents navigate pregnancy, birth, breastfeeding, and pumping. Our product range includes organic nipple balm, disposable nursing pads, washable nursing pads, breastmilk storage bags, manual breast pumps and double electric breast pumps, postpartum essentials, baby bottles, and more. Lansinoh products are available in more than 70 countries and the company is committed to being climate neutral by 2030.

Brand: Lansinoh


Material: Low density Polyethylene (LDPE)


Capacity: 6 ounces


Product Dimensions: 4"W x 8.25"H


Recommended Uses For Product: Refrigerate


Closure Type: Zipper


Number of Items: 1


Special Feature: Freezer Safe


Shape: Rectangular


Color: Clear


Brand Name: Lansinoh


Recommended Uses For Product: Refrigerate


Model Name: Breastmilk Storage Bags


Unit Count: 1 Count


Manufacturer: Lansinoh


UPC: 885247747785 045473137112 885188528955 885405503383 885295963021 315455203747 372237087568 885239393655 653459012041 044677204705 885101754218 885545955189 852675731976 737989649660 885264582833 885139157449 884674419258 315455181113 702872638847 885623496696 885273395417 885175929581 744222235511 638037687170


Global Trade Identification Number: 05


Included Components: 100 Lansinoh® Breastmilk Storage Bags, 6oz


Item Type Name: Breastmilk Storage


Model Number: 20470


Manufacturer Part Number: 20470


Shape: Rectangular


Color: Clear


Material Type: Low density Polyethylene (LDPE)


Capacity: 6 ounces


Item Dimensions W x H: 4"W x 8.25"H


Number of Items: 1


Item Weight: 16 ounces


Number of Pieces: 100


Size: 100 Count


Package Size Name: 100 Count


Item Dimensions L x W x H: 4"L x 0.5"W x 8.25"H


Number of Sets: 1


Closure Type: Zipper


Other Special Features of the Product: Freezer Safe


Reusability: Disposable


Load Capacity: 170.1 g


Material Type Free: BPS Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 9

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Better than Medela
Size: 50 Count Style: 6oz
After discovering that Madela bags can make your milk smell and taste rancid, I switched. But, I also did a little comparison work: Lansinoh bags can hold up to 6 ounces of breast milk. Medela bags can hold up to 5 ounces of breast milk. Lansinoh: On the simplest level, the Lansinoh bag is easier to open and pour milk into than the Medela bag. The reason I find it easier is because of the material the bag is made out of and the bag is more pliable. You open the bag by removing a small strip that is perforated on the top. There are two seals on these bags, which is a huge plus. It's a comfort in preventing leaks. The reason why Lansinoh wins the freezing process is because they lay flat very well. I've found that when laid flat, the bag freezes into a solid rectangle of milk that is consistent in thickness. It is also easy to "stack" once frozen which is very helpful for organizing. It's also important to squeeze all the air out of the bag which is much easier to do since there is not a large plastic section at the top, like in the Medela bags. Medela: The Medela bags have the ability to be attached directly to a pump. As a result, there is a large plastic area on the top of the bag that is perforated. This makes these bags a little bit more awkward to open. Lansinoh: Since these bags are fantastic for the freezing process, they are easier to thaw because they are consistently the same thickness. They look like a perfect rectangle of frozen milk. Or you can freeze the bag standing up. My husband loves how easy it is to thaw these out. Way easier than Medela. Medela: Bag leaks when you thaw it and sometimes they leak in the freezer (which really is a mess). This is because there is only one seal instead of the double seal on the Lansinoh bags. ... show more
Reviewed in the United States on June 3, 2010 by L. Peterson
    • Good freezer bags
Size: 200 Count Style: 6oz
Got a freezer full of these things and they do pretty well. I don't think their estimate lines are any worse than any other brand - there will always be some little bit off when it's a bag. The double zip really keeps liquid locked in. I have set these beside me on the bed after filling them and they don't leak when closed tightly. But do make sure they are closed even if you stand them up because they can easily tip over and spill! I've also had one or two that got scraped by the freezer closing and didn't realize it and the bag leaked when it was thawed. That was a pain, but something that I think could happen with any freezer bag. ... show more
Reviewed in the United States on July 12, 2025 by Bo
    • "Daughter-Approved, Dad-Reviewed!"
Size: 100 Count Style: 6oz
Full disclosure — I'm a proud grandpa writing this one on behalf of my daughter, who specifically requested these Lansinoh Breastmilk Storage Bags and swears by them. My wife picked them up, and let's just say our daughter was very happy with the delivery. When a new mom has a strong opinion about a product, you listen — and she has made it crystal clear that these are her go-to breastmilk storage bags, no debate. From what she's told us, the bags seal securely and she's never had a leak, which when you're talking about stored breastmilk is honestly the whole ballgame. The pre-sterilized bags give her peace of mind, and the write-on label area makes it easy to track dates and quantities — a small detail that turns out to be a really big deal when you're sleep-deprived and running on fumes. The double-zipper seal apparently gives her extra confidence that nothing's going anywhere, whether the bags are in the fridge or the freezer. The 100-count package is also a practical win — it's one less thing she has to reorder constantly during an already hectic season of life. Good value for what you get, and the quality has been consistent across the whole box. If I'm being honest, I don't have any complaints — and more importantly, neither does she. When your daughter finds a product she trusts for something this important, you just keep buying it. Hope this helps — and congrats to all the new moms out there! ... show more
Reviewed in the United States on May 21, 2026 by Steve Hall
    • BUY IT!!
Size: 200 Count Style: 6oz
Review Image by Taylor renne
LOVE. Im not the type of person to leave reviews *so it means something lol*. I had a bunch of extra bags from other people (this brand included but they were from 3 yrs ago) I ran out of them so I tried the next brand.... did not like them at all, they were bulky and didnt give u a spot to leave how much milk was in the bag. I went on Amazon to find more of this brand and I was skeptical bc it did not look like the ones I had, thought well it was 3 yrs ago when they were purchased so probably a design update. Well let me tell you that I love these even more than the ones I had. The texture feels so durable, the zipper is satisfying, writing on the spot for date/time/oz is satisfying, they are slim still so I can fit more in the freezer. I actually enjoy bagging milk again. The price also is very reasonable! Here is a pic of these bags and the other brand I tried for comparison on how slim these are! Both have 5oz in it ... show more
Reviewed in the United States on August 12, 2026 by Taylor renne
    • Love these 🍼
Size: 200 Count Style: 6oz
These are my personal favorite bags because of their shape and that you aren’t writing with sharpie/marker directly onto where the milk is. This makes me feel safe that no amount of sharpie will bleed into the bag (even if people argue it’s just a tiny amount i don’t care, there is a reason they use IV labels instead of writing directly onto the bags). They fit great in the freezer and do freeze flat when used correctly. I personally have had no issues with leaking and the seal zipper works as intended. Will be purchasing more. ... show more
Reviewed in the United States on July 23, 2026 by MrsBrownlee
    • Reliable and good quality milk storage bags!
Size: 200 Count Style: 6oz
I LOVE these storage bags!! I have purchased different brands and sizes, but these have been my favorite. I only have had 3 bags leak on me ever after thawing. They thaw very quickly (I recommend no more than 5 oz per bag for quicker thawing), and we’ve seemed to have no issues with freezer burn or taste alterations once frozen (based on that my child never refuses the once frozen milk). They fit great in “brick” form, the zipper is reliable, and they are easy to use and mark. They are recommended for single use, but the fact that 200 bags come per order is helpful so that you aren’t ordering more bags constantly! ... show more
Reviewed in the United States on July 21, 2026 by Rachel
    • Leaked
Size: 200 Count Style: 6oz
Leaked
Reviewed in the United States on March 10, 2026 by Lyndsey Mcnay
    • Our favorite brand
Size: 100 Count Style: 6oz
I will continue to repurchase these! I used them for 2 pregnancies now and they hold up so well. We have had minimal leaks with the hundreds of bags that we have filled. They are easy to use and we haven't had an issues.
Reviewed in the United States on June 15, 2026 by Megan

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