700ml borosilicate glass drink bottle which has a soft, insulating neoprene sleeve that keeps drinks cool for longer. Elixir 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 choice for a clean, pure taste and it offers a safe and eco-friendly alternative. This product is not intended to be used with carbonated or hot liquids and handwashing is recommended.