Dr. Browns makes glass bottles & they're coming out with a polypropylene line here soon, so you won't have to change brands if you don't want to Dr. Brown's Natural Flow® Baby Bottle and Breast Pumps & here's the link for BRU Dr. Browns 7 Ounce Glass Bottles - 2 Pack - Handi Craft - Babies "R" Us

Amazon.com: Nuby Non-Drip Bottle 3 Pack 10 oz 295 ml (BPA free) Assorted Colors: Health & Personal Care & Amazon.com: Gerber GentleFlow Bottles - 9oz. 3pk: Baby are what we use, & they transform into sippy cups

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