Seems BPA got replaced with chemicals that just haven't been tested as much as BPA but have similar effects.
Glass is probably your best bet.
My kids may be too rough on them for glass, so I may tend towards stainless steel. However, this article shows a nice range of options:
http://ecowatch.com/2014/03/13/non-toxic-bpa-free-bottles/
My kids may be too rough on them for glass, so I may tend towards stainless steel. However, this article shows a nice range of options:
http://ecowatch.com/2014/03/13/non-toxic-bpa-free-bottles/