After ordering (5) of the 22oz bottles for my wife and I to use for water, we loved them so much we ordered all of our baby bottles from Lifefactory. I currently have more than 10 of the baby bottles in both sizes and they are awesome. I could not be happier with them. They are glass for one and not the cheap plastic that will leach toxins into your baby's food. The silicone makes them extremely durable and comfy to hold/grip. The nipples, although I am not using them, our baby sure does have an easy time latching on to them and has had no issues what so ever with the nipples or bottles. We had some other nipples on another brand and you could just tell they were not good for the baby. I can't say enough good things about this product and company. The customer service is great, product ships fast and the value is amazing. Trust me when I say you will love these bottles or better yet, your baby will love them too! Forever!!! (Posted on 5/20/11)