What’s the Best Baby Bottle Cooler Bag in 2024?

Jennifer | Updated May 18, 2022 |

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Nursing on the go can be a struggle. Keeping your baby’s formula mixed and at the ready when away from home can be a challenge, too.

If you’re out and about, you need a way to be able to ensure your breast milk or bottles of formula remain fresh and are safe to consume when baby needs them.

This is where a baby bottle cooler bag comes into play. You can choose a bag with a cute design that will keep your breast milk and formula cool for a minimum of two hours.

Finding the right baby bottle cooler bag doesn’t have to be a difficult choice when you have knowledgeable friends (us!) to help you along the way.

The Best Baby Bottle Cooler Bags – Our Top Picks

Note: Our individual reviews are below, but you can also click any of the links above to check current prices on Amazon and other retailers

Baby Bottle Cooler Bag Reviews

Skip Hop Insulated Breast Milk Cooler Bag

The Skip Hop Insulated Breast milk Cooler is a great choice whether you’re trying to keep your breast milk cold for middle of the night pumping sessions or while pumping at work.

You can also use it to keep formula bottles cold or warm depending upon whether you use the ice pack or not.

This cooler bag does come with an ice pack and is meant to hold two bottles. However, you can also use it to hold snacks and sippy cups, too.

The design of this bag has two zippers. You can unzip one zipper to access a single bottle, or you can unzip both zippers for full access.

Another great bonus with this insulated cooler bag is it fits well in most diaper bags and will keep your items cold for two to six hours. This will depend upon whether you use the provided ice pack or not.

There are some downsides to this cooler bag. When using the bag with the ice pack, it causes condensation to gather on the outside of the bag. This will make anything it touches wet, too. Plus, the way the bag is designed, it leaves room for mold to form.

It has an easy-to-wipe inside, but there are still crevices that leave room for mold to form in tight corners. But you’ll be cleaning it now and again so hopefully this shouldn’t become an issue.

However, this bag does come in quite a few fashionable designs. Though there are some lows to this bag, there are also quite a few highlights that could still make this a great bag for a new parent or nursing mom.

What we liked:

  • Holds two bottles and can keep them warm or cold for between two to six hours
  • Comes with a freezer pack
  • Has a unique two zipper design, can fit inside a diaper bag, and comes in a variety of designs

What we didn’t:

  • Collects moisture on the outside of the bag when using a freezer pack
  • Potential for mold to develop in the tight corners of this design

Nanobebe Baby Bottle Cooler Bag

The Nanobebe is a stylish way to store your baby’s bottles or your breast milk while on the go.

These baby bottle cooler bags are able to hold three of the nanobebe bottles. The design of these bottles is different, so it probably wouldn’t hold as many traditional style bottles.

The bag was designed with three-layers of insulation, comes with a small ice pack, and is said to keep bottles cold for hours.

This entire bag can be tossed into the washing machine when it’s dirty. Plus, it has a Velcro strap which allows for the bag to be easily attached to a stroller handle or a diaper bag.

The biggest downside to this bag is its size. In comparison to other bags, this one is relatively smaller. Keep all these things in mind when deciding which cooler bag is the best fit for you and your baby.

What we liked:

  • The stylish design will blend in flawlessly with any other bags you may be
  • Velcro strap helps this bag easily attach to a stroller or tote bag
  • Machine washable, circular design that’s well insulated

What we didn’t:

  • Smaller than some of the other bags on the market

Momcozy Insulated Baby Bottle Bag

Are you in the market for a fun breast milk cooler and bottle bag? The Momcozy bag could be what you need.

This bag comes in a pretty floral design which would look good no matter how many bags you’re carrying.

It has a detachable buckle clasp that allows the bag to be attached to a stroller or to be used as a handle when carrying it outside of your diaper bag.

The bag also has a pocket on the inside where the ice pack can fit securely in the bag. This will keep it from flying all over the inside of the bag while holding four or more bottles.

However, there is one drawback to this bag. It has a foil, waterproof interior. Though this sounds great, it can be easily damaged.

The bag isn’t machine-washable and should be spot-cleaned as needed. You must be careful with the foil lining to ensure it doesn’t rip or get caught in the zipper. This can cause the bag to no longer be effective.

If you can treat this bag with care, you should hopefully have few to no problems when using it to keep your breast milk and baby bottles cool while on the go.

What we liked:

  • Cute design
  • Easy to carry or attach to a stroller
  • Holds four or more bottles

What we didn’t:

  • Foil lining isn’t as durable as some parents might prefer
  • Not machine washable which can be inconvenient for busy, new parents

Momcozy Multi-Function Bottle Cooler & Lunch Bag

If you’re in the market for a fashionable baby bottle cooler, the Momcozy cooler and lunch could be what you need.

This cooler bag has a detachable clasp that allows the bag to easily hook to a stroller handle when on the go.

However, it also comes with a shoulder strap for easy use when you’re on the go without a stroller.

The bag is designed with a zipper that secures a flip top lid. It will hold four or more bottles (based upon fluid ounces) and has separate compartments for snacks, cellphones, and even your wallet.

This baby cooler bag has a waterproof interior to make cleaning milk-spills easy. It can keep items cool or warm for up to five hours without an ice or heating pack.

The only downside to this bag is that it’s not machine washable. You can spot clean it and leave it outside to dry in the sunlight. However, this isn’t convenient for everyone.

What we liked:

  • Functional bag design
  • Holds up to six bottles
  • Detachable shoulder strap
  • Can be carried over the shoulder or attached to a stroller

What we didn’t:

  • Not machine washable which might make the cooler bag difficult to keep clean or decrease the bag’s longevity

Why Do You Need a Bottle Cooler Bag?

A cooler bag comes in handy when you’re a new parent or a nursing mother. They are designed to keep baby food, formula, and breastmilk cold.

They’re perfect when traveling or having family outings. Place foods, which need refrigeration to keep them safe for consumption.

A bag is also perfect for mother’s who pump when away from home. You may need to pump on-the-go or at the office. When you must pump but aren’t near a refrigerator, a baby bottle cooler can help keep your milk fresh until refrigeration.

These things makes life with baby on-the-go a little easier.

Can I Use a Cooler Bag for Breastmilk and Formula?

You may use a cooler bag for both breastmilk and formula. Cooler bags are great when you must pump while on the go.

Nursing mothers can’t always place their newly pumped milk in a refrigerator. Either they don’t have one, or they don’t want to leave breastmilk in the fridge at work. Who can blame them?

Instead, a cooler bag could come in handy to keep your milk fresh until you can place it in your refrigerator at home.

Cooler bags are also great if you must provide premixed formula to your child’s daycare. You can carry the bottles to daycare in a bottle cooler to ensure they remain fresh until your child is ready to enjoy them later in the day.

How Long Will a Cooler Bag Keep My Baby Bottles Cool?

Each brand offers a different timeline for how long it will successfully keep your baby bottles cold. Most brands claim to keep your bottles or breast milk cool for at least two hours.

Other brands claim they can keep bottles cool without ice packs for three hours or more. While some claim to keep bottles cool with an icepack for closer to six hours.

Review the insulation specifics supplied by the brand because this is where you’ll get an idea of how long the bag will actually keep your items cool.

What to Look for in Cooler Bags

The Size

As with most bags, if the bag can’t hold what you need it to hold, it isn’t worth the money.

Therefore, you’ll want to ensure the number of bottles you must carry can be held by the bag you choose.

Be sure to check specifics about the size of bottles the bag will carry as well. Some bottle bags are specifically designed for that brand’s bottles which may not carry the same fluid ounces that your baby requires.

How Does it Carry?

When you’re a parent, your hands are always full. You need a bag that works for you. If you have too many shoulder-strap bags, you might want a bottle cooler that fits on your back and vise versa.

You may even find a bag that will easily fit on the strap of another bag you’re already carrying or one that will easily attach to your stroller for hands-free travel.

Finding a bag that’s easy to take with you wherever you go is a must when finding the right bottle cooler bag for your life.


Let’s be real for a moment. Looks aren’t everything, but if something can look good, why wouldn’t you want it to?

Some bottle cooler bags come in a variety of styles and patterns. There are also various designs which allow a bag to look good while functioning even better.

Find a style you love with a functional design that you’ll want to use every day whether carrying breast milk pumped on the go or baby’s bottles.

Easy to Clean

You’re a parent now. You know messes happen…frequently. Everything in your life must be easy-to-clean.

This includes any baby bottle cooler bags. Spilled milk is a given, so be sure to find a bag that will allow you to wipe the mess away like it never even happened.

Finding a bag that’s machine washable is even better. This allows the entire bag to be cleaned with little extra effort on your part.

How Long Will it Keep Milk or Formula Cool?

This is perhaps one of the biggest items you should look for. What good are baby bottle cooler bags if they don’t keep things cool very long?

Find a bag that will keep your breast milk, formula, or baby food cooler for longer periods.

Keep in mind, bottle bag coolers can also serve as warmers. Quality insulation is a must whether keeping cold items cold or warm items warm.


Jennifer is a homeschooling mom of three boys. She has an MA in Professional Writing and teaches a variety of classes in the homeschooling community. Her favorite things to do are spend time with her family, write, read, and garden. Life is a journey, and she's doing all she can to soak in every moment!


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