Stylish 600ml borosilicate glass drink bottle which has a secure screw on lid with a carry handle and a flip out drinking valve with a straw. Borosilicate is a lightweight glass that is exceptionally strong and shatter-resistant. Glass is a natural BPA-free choice for a clean, pure taste and it is a safe alternative to single-use plastics.. Elixir is not intended to be used with carbonated or hot liquids. This product is not dishwasher safe and handwashing is recommended.