Wee Go by Lifefactory makes glass bottles that are bisphenol-A (BPA), phthalate, and polyvinyl chloride (PVC) free.

Details:
thermal shock resistant, can go from freezer to boiling water
silicone sleeve helps protect the bottle from drops off the stroller or feeding chair
no chemicals leaking in to liquids
non-toxic, plastic and latex free
dishwasher safe
grows with your child: serve as easy-to-hold first cup
4 oz bottle includes Stage 2 (3-6 months) Silicone Nipples

Materials:
borosilicate glass and medical-grade silicone