Introducing the Plastic Free Glass Baby Bottle from Hevea! Made from shock and thermo-resistant borosilicate glass and featuring a natural rubber nipple and cap, these wide-neck bottles are perfect for breast milk, formula, or water. Additionally, the soft and durable natural rubber cap is vacuum-sealed for leak-proof travel! Depending on your little one's age, choose from either 5oz or 8.5oz in a 2-pack