M.B.
My daughter loves the Dr. Brown's bottles, but I bought the born free bottles after and they were AWFUL, so we then had to buy the wide-neck inserts/nipples to fit the Born Free bottles and that was much better... So, only the wide necks fit since that is all Born Free comes in... BUT Dr. Brown's now has BPA-free standard plastic polypropolene bottles so we just bought those and I am happy to be back to the good ole Dr. Brown's bottles and my daughter is as well! : ) Good luck!