These glass bottles are a non-toxic, BPA free, eco-friendly, and reusable alternative to plastic bottles. This glass water bottle, like many great products, was inspired by a need. The need for a safe, sustainable and portable water storage solution. Made from pure borosilicate glass – a very clear glass which resists heat changes better than other types of glass. These bottles are great for camping, the gym, working out, daily usage and even all types of essential oil consumption including doterra & young living. Additionally the thick bottom provides extra durability allowing the glass bottles to be used repeatedly and even cleaned in the dishwasher!