600ml double wall drink bottle that keeps drinks cool for longer. It has an inert polymer gel between the walls which freezes when the bottle is put in a freezer. Once frozen, simply fill the bottle with a pre-chilled beverage. It is manufactured from Tritan which is shatterproof, odour resistant, BPA free and can be recycled. The bottle has a secure screw on lid with a flip drinking valve and a straw. Handwashing is recommended.