UnimomBreastmilk Storage Bags - 7oz - Pump Breast Milk Directly Into Bag with Included Universal Adapter - Self Standing, Leak Proof, BPA Free, Pre Sterilized - Graduated Measurements (50)

Firstly, these bags are advertised as 7oz but they are actually 8oz, which is nice. I am lucky enough to produce a lot of milk. When my baby gets up for his nighttime feeding, I am very full and have pumped as much as 8 oz on the breast im not feeding him on. So my 5oz Spectra bottles weren’t cutting it. I use Unimom regular storage bags (which are great) and decided to give these a try. It is soooo nice to be able to pump straight into a bag, especially now that im back at work! It cuts down on time and clean up. And they are reuseable! I will be using these from here on out. Now for the cons: Adaptors are included with every order. While this is nice if you lose yours, I find it a wasteful use of plastic (I always try to be green and this is obviously not). Also, the bags screw on and I have had a couple instances where they came unscrewed by accident. This caused the bag to drop onto the floor and spill milk. As all moms know, crying over spilt milk is totally a thing. I just try to be a little more vigilant so that doesn’t happen.

Update- I take back this negative review. After some inspection, I think I was causing the leaking myself. I think the bags were kinking just past the opening of the bag (folding over a bit while I was sitting), and this caused the milk to pool inside of the upper adapter and not flow into the bags. The milk would then seep out of the adapter connections. Learn from my mistake! Now that I’m more careful, the bags are not leaking!I really wanted these to be great, as I’m an exclusive pumper so this would have allowed me to skip a step by pumping straight into the bag. I’ve used the bags and adapters (on a Spectra Pump) about 10 times now, and 4/10 times they leaked. The parts were clean, dry, twisted together tightly and properly, yet I about 10 minutes into pumping, I’d notice the leaking (usually just on one side). Stopped the pump, inspected, dried and re-twisted the parts together, yet still had leaking. It seemed to come from the adapter parts. I won’t be buying again, and am disappointed that some of the milk was wasted!

I like the fact that they come with screw on tops to keep the bags secure and prevent them from spilling. It also make transferring milk into bottles easy. You will need to make sure the parts are attached correctly otherwise it may leak. It happen to me once or twice.The kit comes with 4 attachments. 2 of them fit Medela in Style pump.To summarize the bags will come handy if you pump ahead of time or if you are building a stash. It’s an extra step if you are going to feed your baby immediately after pumping. Overall It’s a good quality product.

I’ve only used these one time so far, but I’m so excited about these I had to review. I had been considering buying the name brand, significantly more expensive bags like these for a while but couldn’t bring myself to pull the trigger. But these are awesome. I’m a full-time working, breastfeeding mama, so anything that makes my pumping time easier is greatly appreciated. Pumping in the office is awkward enough, and what’s more awkward is when people try to talk to you while you’re washing your pump parts 😬 one less thing to wash makes me happy. And skipping the part of transferring milk to bag post pump is so convenient. I can’t speak to leaks yet, hopefully these hold up on that end. The plastic is a little stiffer than my typical Target-brand bags, but that doesn’t bother me. I’m also blessed with a good supply, and I usually pump 10+ ounces from my right boob alone in my first session of the day. So the 8 ounce bag fares much better than the 5 ounce bottle I’ve been using. I have a Spectra S2, and these worked perfectly with my pump!Overall, very happy with these bags.

These were good, but not so much if you're only producing a little bit of milk. If you make enough milk to fill a bag with each breast then they are perfect, but for me I was only making an ounce or two per breast so trying to poor milk into these bags from a bottle was pretty hard cuz of how small the opening is. Out of all 50 bags there was only one that leaked. They froze well. Stood up on their own. Super easy to pour from. I would order again if I were making more milk and had a second adapter to pump straight into the bag.

These are great for milk storage. I tried buying adapters and nipples so I could feed straight from the bag but they all leaked. I wish the company would sell nipples to go with. It was heartbreaking to see the leakage when my milk hadn’t come in yet but now that I’m producing more I don’t mind a few drips lost in the transfer to bottle process. Works with my Spectra pump btw

Purchased a second order of the same storage bags, but strangely got bags that don't expand. These bags seem to be sealed at the base and although the volume markers say 8 oz as the max they only hold 3 maybe 4 oz. Of course I ordered 2 sets of 50. Went to order more or get a replacement, but they are no longer available.

I wish I would have known about this adapter and these bags sooner after coming home with baby. They work perfectly with my Spectra S2 pump. I was using the crappy bottle that comes with the pump and dumping them in freezer bags after every pump session and now this make my pumping so much more streamlined and less messy. I am a fan!!

Prompt delivery, item as described, however.... you only get one adapter in the pack!! I have a unimom double breast pump and purchased these bags as going back to work, as you cannot purchase the adapter separately I've had to purchase another pack so I can use as intended. Disappointing that unimom could not supply a second adapter, which probably costs them very little!