The stainless king beverage bottle has TherMax double wall vacuum insulation for maximum temperature retention, hot or cold. It is designed to keep liquids hot for 12 hours, and cold for 24 hours. The unbreakable stainless-steel interior and exterior keep the beverage bottle cool to the touch with hot liquids and sweat proof with cold liquids, so it's never uncomfortable to hold. The lid doubles as an insulated serving cup, and the twist and pour function allows you to pour without moving the stopper. With an ample 40-ounce (1-1/5 liter) capacity, the bottle offers plenty of sustenance on the go.