my absolute favorite baby bottles as a first time mom 4 months postpartum who exclusively bottle fed!! i had the glass version of all of these and our number one favorite is the philips avent glass natural bottle. the nipple is narrow to fit in baby’s mouth but they have to work to get the milk out. pro tip: START with nipple size 3 as a newborn! LTKmomlife LTKBaby LTKKids