Lifefactory glass baby bottles to the rescue!
I initially bought the 9 oz bottles for our twins, with the sippy caps, as I figured the 4 ounc-zers wouldn't get much use over time.
At 20 months, I bought the 4 oz bottles, as they are lighter, my kids weren't ready to give up the nipple, and they didn't love the sippy cap.
So now I alternate giving them the 4 oz and the 9 oz lifefactory bottles. I think the smaller ones are easier for them to hold with one hand.
Good products. We have larger ones for ourselves as well.
ConsThey will break if thrown or dropped and hit just the right angle.
Best UsesBaby bottles.