The Vango URBAN BOTTLE 460ML is made of stainless steel making it the perfect way to reduce the consumption of disposable plastic bottles. The double-walled bottle can hold heat for up to 6 hours and keeps drinks cold for up to 12 hours. The reusable bottle has a plastic cap that is BPA-free. The leak-proof release button on the lid is easy to operate and designed for easy one-handed opening.