My gal was having trouble taking the mason bottle, and I was worried she wouldn’t take it at all. I ordered these nipples and that all changed! I recommend for littles who don’t seem to want the standards.

Tried with metal and the plastic tops, and consistently leaks. Have tried with all 4 I’ve purchased. Super disappointing, plus I’m losing a bit of milk with every feed!

They’re so leaky and not worth it. Don’t waste ur money.

Our child was born premature and does a mix of breast and bottle feeding. This nipple works very well for her! Warning though, standard tempered glass mason jars will crack when put in a steam based bottle warmer, thankfully our kiddo doesn't mind cold milk! I would recommend this product to other parents to try!

Once our baby outgrew premie nipples this was the only nipple that wasn't so thick they would get too much milk too quickly or so think that they would completely compress the nipple and get nothing! Works super well!

The soft nipple didn't fit the nipple ring properly so we could never use it. The company customer service is amazing though, they sent me ones which was a little more but not like the original nipple. I was able to find a different bottle from another company that was oval shaped and my baby liked.

I have emailed [****] multiple times since June 5th needing to return this order. The nipples with the plastic rings leak and we have tried it on every mason jar multiple times. Please respond so I can return the order and get a refund.

I didn’t get to use these with my 31 week preemie because I didn’t know about this company when I had him , but just the simple fact that this product was made with preemies in mind is pretty significant to me! And they are made in the USA!!!

Leaked from the nipple and baby couldn’t control the flow. Returning as soon as possible.

Most true to nature - for a nipple! Our second child - breastfed except when mama works - had a lot of difficulty in taking a bottle. We tried many different nipples before discovering the MasonBottle. The extra soft nipple was the only way she would take a bottle. From our babysitter: Oh the soft nipple is amazing!!!!!! That needs to be put on every billboard!! She drank another 4oz then went back down. She drinks so much easier with that nipple. More natural! Thank you MasonBottle! - yet another convert

Best nipple so far my baby loves this bottle nipple compared to all the others we’ve tried no struggles with latching leaking or any of that sort. Highly recommend mason bottles. :)

The best, most realistic nipple Baby loves it. Huge thank you and shoutout to customer service for helping me find one that works.

Little ones Great for newbies.

I have both soft and the regular nipples. I love the soft! My daughter drinks it like it's the real thing. It's so soft it flexes and bends as she drinks from it.

My daughter is 4 months old and will not bottle train. This is the only nipple that she has latched onto. The flow is so slow that she sucked for nearly two minutes before the milk started flowing through the nipple. This is perfect for her because if too much flows, she gets really upset. We’re still working on training but so far this nipple has given us the most progress. And a bonus is that the bottle parts are super easy to clean!

We have tried nearly every nipple on the market for our breastfed baby who is 3 months old and refusing bottle feeds. She took to this pretty well, but the flow was too slow and the silicone too soft. I am hopeful she will take to the regular, faster flow nipples. Quality was good, customer service excellent, and the nipple is easy to clean. I think it is commendable that the company accepts returns on their items; it has been incredibly expensive for us trying out so many different nipples to find one she will take.

We liked this one. Had issues with venting properly.

We wanted Mason bottles to work for us so badly, we decided to give these a try after a few attempts with the regular 0-3 month nipples resulted in my son either seemingly getting nothing out at all or flooding himself. With the extra flexible nipples, our 2 month old is now easily drinking without wasting a drop of my pumped milk. We’re thrilled this option was available!