I won this in a UFO catcher game, so there may be minor scratches on the outer box. Please be aware of this. This is a vacuum-insulated tumbler with excellent heat and cold retention. For reference, an iced cafe latte I put in at 9:00 AM stayed cold until 5:00 PM. It requires ice, but I think it will keep things cold for 7-8 hours. - Brand: CUUM - Color: Blue - Capacity: 550ml - Features: With straw, heat and cold retention