Medela Breastmilk Storage Bags
Pre-sealed, ready to use straight from the box, and built to pair with Medela's own pump and bottle system so there's one less transfer step to spill.

200+ bought in past month on Amazon
The cheapest per bag of anything at this quality, and they take being warmed as well as frozen.
Check price on AmazonOpens Amazon in a new tab, where today's price is always shown. As an Amazon Associate we may earn a commission if you buy — at no extra cost to you, and it never changes our pick.
High-volume pumping on a budget
Thinner than Lansinoh — lay them flat in a container rather than stacking them loose.
Also worth your money — where we'd turn if the top pick is sold out or over budget.
Pre-sealed, ready to use straight from the box, and built to pair with Medela's own pump and bottle system so there's one less transfer step to spill.
Rigid 5oz bottles you pump straight into, store, then feed from — no pouring between containers, which is where milk gets lost.
These bags stand on their own and open wide, so you can fill them or pour milk into a bottle without a second pair of hands. The double zipper and reinforced dual-layer construction mean less worry about a leak in the freezer or your bag.
200+ bought in past month on Amazon
These bags change color so you can see at a glance whether milk is still cold, at feeding temperature, or has gotten too hot. That's one less thing to guess about when you're warming a bottle at 3am.
These bottles pump directly on your Spectra S1, S2, or 9 Plus, so there's no transferring milk between containers and nothing lost in the process. The one-piece cap with a sealing ring keeps things from leaking once you're done and ready to store or go.
If your baby goes back and forth between breast and bottle, the NaturalWave nipple's wide, soft slope is designed to keep that latch familiar. It's also built to work directly with Lansinoh breast pumps and nipples, so pumping straight into a feeding-ready bottle is simple.
You can pump straight into these and then screw on the lid for a leak-proof seal, so there is no transferring milk between containers. They are reusable and made to resist scratches, cracking and splintering, which makes them a sturdier everyday option than single-use bags.
These bins are not bags themselves, they are what you set your milk bags into so the freezer stops being a jumbled mess. The narrow shape fits most standard fridges front to back, and the clear sides mean you can spot what you need without pulling the whole bin out at 3am.
These bags have a side pour spout with its own small zipper, so you tear it open and pour instead of wrestling with the main seal. They also stand up on their own or lay flat, so you can fit them in the fridge or freezer however you have room.
This one is for getting milk from home to daycare (or pump to fridge) without it warming up on the way. It holds up to 6 bottles at once, so you can pack a full day's supply in one trip, and it comes with an ice pack already included instead of making you source one.
If you pump with a Spectra, Motif Luna, Ameda MYA, or Bellababy, these bottles thread right onto your pump so you can pump straight into them without transferring milk and losing drops. The SureSeal disc keeps them fully leak proof for storage after.
When you're holding a baby with one arm, you need the other hand free to actually get milk into a bottle without a mess. The wide top opening makes filling easy, and the side spout lets you pour it out one-handed with no spills.
If you're pumping into a bigger container instead of individual bags or bottles, this pitcher gives you a wide mouth for pouring milk in and a V-shaped spout with measurement markings for pouring it back out without a mess. Two silicone seals inside keep it from leaking if it tips in the fridge.
When you are going through bags every single day, cost per bag matters, and this is the cheapest option in the lineup. You still get double zipper seals, a pour spout, and a spot to write the date, so you are not giving up the basics to save money.
If you'd rather pour breast milk from a sturdy glass jar than fuss with bags, this one has a wide mouth for easy filling and cleaning, a handle built to hold the full jar's weight, and a flip-top spout lid with a silicone seal so it locks in freshness in the fridge.
When you want milk or pumped milk out of plastic entirely, these glass bottles come with airtight screw lids and silicone gaskets so you are not mopping up leaks in the fridge. The pour spouts make one-handed pouring easier when you have a baby on your hip.
When you're out for a full day away from a fridge, this cooler is built to hold temperature rather than just hold milk. The 360° surround cooling tube keeps things consistently cold for over 24 hours, and two separate 22oz bottles let you keep warm and cold milk apart instead of guessing what's still safe.
Some links are affiliate links — if you buy through one we may earn a small commission at no extra cost to you. It never changes our picks or your price.