I was a new young mom who was so unsure about which bottles i wanted to use for my newborn son. I was breast feeding so i knew that i wanted a bottle that was as close to as a mothers nipple as possible. Then i found the Avent bottles while shopping at Babies R Us. I fell in love with the look of the bottle so i bought a set of 4oz and 8oz bottles. My newborn absolutely loved the avent bottle. It was as though he didnt know the difference between mothers breast or bottle. I also enjoyed the fact that these bottles never leaked. Alot of bottles leak if you shake them or drop them, but not these...