When we introduced the thinkbaby over 4 years ago 95% of the baby bottles on the market were made of polycarbonate which contains BPA. Initially, we attempted to convince the major companies to move off of polycarbonate, but after being unsuccessful we launched thinkbaby and thinksport to address the concern of chemicals leaching from consumer products. We started with the baby bottle because polycarbonate was ubiquitous across the industry. As little ones systems are still in a state of development they have very little defense against foreign chemicals. While many companies have emerged to offer BPA free baby bottles, many bottles not only still contain BPA despite saying BPA free (see Health Canada study), but many companies have also landed on untested materials just because the material claims to be free of BPA. thinkbaby utilizes the precautionary principle in the creation of all of our products. The top of the bottle features a easy to close cover to keep it from coming into contact with foreign substances. The thinkster is made from No. 5 plastic and therefore can be recycled after use.