Honestly, by 1 year old, a lot of us nannies and moms are already moving away from bottles kasi mas okay na sila mag-sippy cup or open cup na, mas makakatulong pa sa development nila! If kailangan mo pa rin ng bottle though, something with a wider nipple and slower flow works best, parang yung ginagamit namin para sa older babies. One of my mum friends switched to stainless steel bottles kasi mas durable at hindi siya worried sa chemicals, plus cleaner pang-long term compared sa plastic na madaling mag-scratch.