FREE limited edition stickers with every Milk Cooler purchase!
Meet the Breast Milk Cooler that cools faster and stays colder for up to 24 hours vs. leading milk coolers.* Plus, with new sizes, colors, and two ways to cool, this patent-pending Cooler safely and stylishly lets moms store milk wherever the day takes them.
*Compared to leading milk coolers in Eurofins 2026 controlled, third-party testing
Free delivery on orders $50+
2-year warranty on electric pumps (90 days on accessories)
Chat and Whatsapp 24/7 support
In-app support and guidance
Keeps milk at a safe temperature for up to 24 hours
2 sizes hold up to 16 oz. or 25 oz. milk
Two ways to cool
Ice core stays in bottle for sanitary milk transfer
Fits in most cupholders
TSA compliant & travel friendly
Now with two ways to cool, this newly redesigned, on-the-go essential makes travel a cinch.
*Compared to leading milk coolers in Eurofins 2026 controlled, third-party testing
No fridge? No problem. Our new Breast Milk Cooler makes it easy to chill milk on the go with with ice cubes or an ice pack.
Overall rating: 4.7714286 / 5 from 35 reviews.
The Breast Milk Cooler offers quick cooling and long-lasting cold retention, with new sizes, colors, and cooling methods. Customers appreciate the comfort and absorbency of the pads and find the kit beneficial for breastfeeding, especially for new mothers. Some users have mixed feelings about the size options.
Review topics: ["size","looks","design","cooler","feel","packaging","milk","ice pack","ice","stay","feature","handle","ounces","cap","hands","bottle","pack","pour"].
"At first I was unsure if I was going to like it, due to being an under supplier. I did not think it would keep the few ounces I pump at work cold. I am happy to say my milk was ice cold at the end of my work day. I have tried many different milk coolers and this by far is the best. Hands down I highly recommend this cooler! The color is so cute and love being able to use ice or the frozen pack it comes with."
"I'm absolutely in love with this chiller. The design is amazing, the best feature is the ice pack for the inner chamber! With another brand I had a leak from the inner chiller meaning all the ice water mixed with my milk and had to be dumped ): with the ice pack design it completely removes the odds of something like that occurring! It also still provides a spot for ice if you were traveling! The color combo is so gorgeous it's simple but so stunning and eye catching!"
"I love this cooler! It's honestly been my go to for overnights compared to their competitors. I will say the inner lid where you pour the milk can get loose so make sure to tighten before pouring just in case! Making it super easy to chill breastmilk has been amazing - love that the cooler part never touches breastmilk making it easy to throw in freezer for later use. Also most bag pocket & cup holder compatible 10/10"
"I love this new chiller. It's my new favorite! Previously I really liked the Boon because I could pour milk on the inside container and not have to pull out the center and drip milk everywhere but THIS ONE is way better. Super simple, take off one cap and pour in, it easily pours out to, all without having to remove the center ice pack container piece. I have used boon, the older willow, momcozy, and off brands. Occasionally the middle piece will slightly inscrew when I unscrew the top cap but its not a huge deal, I learned to check it before pouring. Even with that, this is by far the best! I LOVE it."
"I really like the new willow milk cooler. It feels like a new and improved version of other coolers on the market. I really like that you can use an ice pack or fill the container with ice to keep the milk cool. I've always preferred the ice packs and love the idea that I can refill with ice if the pack starts to melt or if I forgot to freeze the pack. I love this size as well, it fits right into my backpack for work. I would love for a smaller version as well that I can use on to go when I only have to pump once and don't need such a large storage bottle. The only downside for me is that I don't love mixing warm and cooled milk and there's only one place for the milk to be poured."
"I used to store my breastmilk in a bag with a cooler pack but this cooler has made it so so much easier for me at the office. It looks like a regular cooler so I'm able to discreetly pour my milk into the bottle and pop it back into the fridge. Love that there's a separate filter that separates the cooler from the milk so there's no contamination. I love that after 12 hours, I can come home knowing the milk is still safe for my baby!! Plus it's pink. . I mean it's cute and functional!"
"This cooler is amazing! I love the option to use ice or thencooling block. I love how youndont have to remove anything but the lid to pour mill in or out. I love how they're customizable and different ounce sizes as well. This has been my go to cooler and LOVE how it fits in my cars cup holder. This is one thing every pumping or breastfeeding mother needs."
"I love the new added features to the milk cooler: the duo ways to chill and the way the lid comes off to pour your milk into the bottle is perfection. The only thing that I dont love about the new cooler, is the size; it is a bit awkward to handle and store easily in a bag on the go."
"You may asking yourself, what makes these bags different than any other milk storage bag? Well, let me tell you - the fact that I can effortlessly scan each bag into the app to track how much is in my freezer is just amazing. Being 8 months into my breastfeeding/pumping journey I honestly wish I had these in the beginning. I seriously appreciate being able to know how many bags/ounces are in my freezer especially as we get closer to thinking about weaning. Moving forward having this right at fingertips will be incredibly helpful!!"
"I was excited to be a tester for Willow but was honestly a little underwhelmed when I got it in the mail. As an under supplier, I am always counting ounces/mLs so the need for a clear bottle is a necessity for me. Having to pour directly into the cooler using either storage option wasn't ideal for me. I didn't want to have to carry around an empty bottle just to track my output and then pour it into the cooler and then clean the empty bottle for the next pump. It wasn't too bulky or heavy, and the silicone handle is nice for carrying."
*T&C's apply. See Elvie.com for details.
**Exact out of pocket cost may vary based on your insurance carrier and insurance plan.
SMALLEST¹: Product depth vs. the top 5 best-selling electric breast pumps in the US, UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
QUIETEST²: Acoustic testing in maximum expression mode vs. the top 15 best-selling electric breast pumps in the US, UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
SMARTEST³: Number of app features available to control, monitor and track usage vs. the top 5 best-selling electric breast pumps in the US, UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
SLIMMEST⁴: Product depth vs. the top 5 best-selling electric breast pumps in the US, UK UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
1. vs. Elvie Stride
To verify please contact Elvie at verify@elvie.com.
Hero Image by: Fresh Pine Photography
