Experience the best in temperature retention with the Thermos Stainless King Flask. Our patented vacuum insulation technology keeps your drinks hot or cold for extended periods, while the durable stainless steel construction ensures long-lasting use. The twist and pour stopper allows for easy pouring, and the included insulated stainless steel serving cup ensures a cool to the touch experience with hot liquids and no sweating with cold beverages. Elevate your on-the-go beverage game with the Thermos Stainless King Flask.