I instinctual went for glass bottles for my kids and am very glad that we did so, now! https://www.drbrownsbaby.com/product/dr-browns-options-wide-neck-glass-b

I instinctual went for glass bottles for my kids and am very glad that we did so, now! https://www.drbrownsbaby.com/product/dr-browns-options-wide-neck-glass-baby-bottle/ https://www.drbrownsbaby.com/product/dr-browns-options-wide-... (well, its less-curvy predecessor) is my vote for the best thing on the market for this, in terms of airflow for colic prevention + being a solid glass product.