Made of 100% borosilicate glass, the Crysto Glass bottle keeps your water perfectly pure and 100% safe. The slim, cylindrical shape makes it easy to grip and ensures that it fits easily into the side of your refrigerator. Borosilicate glass is also fridge safe, in case you need to quickly chill your drink. The narrow mouth makes it perfect for drinking directly from the bottle, and the crystal clear, scratch proof glass ensures that your bottle looks as good as new, always.