Quality plastic bottle, but I didn't expect anything less from Dr Brown's. All the bottles for our son and our daughter in the past are from this specific company. Glass or plastic, the quality is impeccable. As for leaks that some mention, as long as you screw the cap on correctly, there is no issue at all.

We got it for the baby's colic, but I don't know if it helped in the end because the baby was crying again. It's not practical because you have to wash and put together 10 parts every time. But apart from that, its biggest disadvantage is that it leaks constantly. No matter how much you tighten it, I don't know how it happens, milk will still be running everywhere and the baby will get wet. For the price, I believe there are more user-friendly bottles.

Sometimes it leaks and I don't understand how that happens, especially at this price. Overall, though, our little one has gotten used to this specific nipple and it works well after breastfeeding

I, too, was swayed by the comments and by all those who have bought it, so I bought all the designs. Both glass and plastic, and I have to say it is unacceptable for a bottle of a good company like this to leak milk from everywhere. I opened the nipple hole more because it had no flow at all, and when you shake it, milk comes out from the lid. Also, if you have the green plastic inside, which is what distinguishes this bottle, it doesn't screw well and milk still leaks around. You have to be very careful when screwing it as if it's a science. Even bottles that cost 4€ are not this bad.

If you tighten it correctly, it doesn't leak. Only once did I have a leak, but I hadn't done something right. Overall, a very good product, lightweight and high-quality