These are the same brand as my breastpumps and they are made well and I like them. They were also on sale so I stocked up!

They are great until they aren’t, used them all the time until I went through 15 bags that were leaking! Decided to finally switch bags

I've been using these for months with only one single bag developing a hole in it while thawing on a bowl of warm water. Otherwise zero issue with them. the directions say to fill them up to 6 oz but 6 1/2 hasnt been a problem for me. It is best however to freeze in smaller increments to have the exact amount you need without waste. The more plump filled bags also have more wasted air space between them when put together into a gallon size freezer bag block of breastmilk bags. They thaw and warm very fast- much faster than a bottle. In the early days id actually pour my milk into the bags just to warm it faster to serve to baby. You can pump directly into the bag but i found that the bags can become crooked without noticing and spill your milk while pumping so it didn't work well for me. Still nice its an option if you forget a bottle and need to empty your breasts on the go. They fit perfectly in a flat bottom freezer bag and keep well when freezer bags are doubled up. i use a permanent marker pen to write on them and it stays on perfectly. I wont be using any other kind.

This has been the trust beand of milk breast storage bags for me for the past 17 years. occasionally the perforations and complete cut through so it makes it annoying to remove the plastic piece you toss. but other than that I've never had a problem with leaks or rips

You want to be incredibly careful with these. They are very thin and flimsy. When defrosting they WILL leak. It’s best to thaw in a bowl to catch. They freeze flat which is nice but not worth it when it leaks. Parents Choice bags are a far better alternative to these . Medela and Parents Choice bags have been my favorite .

I use these bags to hold pumped breastmilk in the freezer. I have not had any problems with the bags' integrity holding up to various temperature conditions. I don’t, however, defrost the milk in the microwave, which is not recommended anyway (creates hot spots in milk), so I wouldn’t know how well the bags would do in that situation. I've only held frozen milk in these bags for about a month at a time before I would need to make a bottle for hubby to feed the baby. Breast milk can be frozen for up to 6 months, so I would need to do an experiment to see how well the bags holds up. My only concern is when pouring the milk from the bag into a bottle, I need to be careful of where the milk touches the non-sanitized part of the bag's opening. I tend to wash the opening flaps first before opening the bag. Lastly, knowing how much milk is being stored in the bag is better determined by a baby's bottle set on an even flat surface. The level read on the bottle is always different than the level read on the bag.

These bags are excellent quality and the zip lock is so reassuring and doesnt require me to fuss around alot to get the seams lined up. The only downside is the bags are super flimsy and wiggle while you try to pour milk in. This has caused me to spill milk all over my counter as I've been trying to fill the bags up. Love the flat storage and zip lock, as I said though.

I have used these bags during two exclusively pumping journeys. they freeze flat and when filling them to 4oz, laying flat in the freezer, i can make a brick of 13 bags/ 52oz. i am a massive over supplier of over 100oz DAILY. So i go through a ton of bags. these have always been my favorite

I freeze two bags per day, and these are the best. Double zipper is great, but the best aspect is the shape. They don't stand on their own, but I know no mommas who would trust their milk to a self standing bag anyway! The shape is perfect to freeze flat for evenly shaped milk. I tried the fancy pump-brand bags, but I always return to these. Great gift, btw. Love them!

These bags store a lot and I like that they are BPA free. I have used about 100 of them and have not had a bag leak or break when I was thawing. It is a little tricky at first to pour them into bottles, that is something my significant other has problems with and has lead to a lot of spilled milk. The only thing I do not like about these is the pouring issue. Other than that, no complaints and I will continue to buy these.