So, everyone is worried about bisphenol A, otherwise known at BPA, which is found in many plastic water bottles. One trendy solution is to switch to the SIGG water bottles which are environmentally friendly and chemical free. Found them the other day while wandering around at Whole Foods. You can get lots of different colors and styles and they make sippy cups out of the same material. For a greater range than what they have at the store, check them out at http://www.mysigg.com/. They run between $15 to $20. Super cute for kids and hey, they give you peace of mind, too!