Thermos Ultimate Stainless Steel Flask - 500 ml, Graphite
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- Thermos vacuum insulation technology for maximum temperature retention; keeps hot for 24 hours and cold for 24 hours
- Durable stainless steel interior and exterior
- Cool to the touch with hot liquids, sweat-proof with cold
- Protective silicone rings for durability
- 5 year guarantee
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Hot or cold, Thermos brand has it covered with their line of vacuumware flasks. Constructed with double wall stainless steel, these products are designed to meet the demands of everyday use. Loaded with features and benefits, these flasks will keep your drinks at the ideal temperature to ensure a more enjoyable drinking experience.
Make your liquids the centre of attention - even when you're on the go, with the latest design flask from Thermos. A perfect combination of elegant style and functionality, yet lightweight, tough and durable an ideal companion whilst out and about keeping liquids hot and cold for up to 24 hours.
For over 100 years, Thermos brand insulated products have been keeping food and beverages hotter, cooler and fresher. Today this commitment continues with an expanding range of innovative, fashionable products that preserve flavour and freshness. When it says Thermos, you know what to expect - we just deliver it in ways you'd never expect.
Thermos vacuum insulation virtually eliminates temperature change by creating an airless vacuum space between two stainless steel walls. The result is an insulation layer that performs better than any other. A superior insulated container you can depend on to keep your food and beverages hotter, colder, fresher, longer.
By using your Thermos brand product instead of disposable containers to carry foods and beverages, you can help reduce the food and packaging waste that is sent to landfills each year. Small changes can make a difference.
Thermos products are produced in socially compliant factories and undergo rigorous quality inspections to ensure product meets and exceeds material and performance standards.
Top customer reviews
Yesterday I filled the flask with tea at 10am, preheating the flask and having the water boiling hot. I stopped during the walk for lunch, had several small cups of tea, and when I was emptying my rucksac about 4pm, the remainder of the tea was still scalding hot. Today I walked in the snow clad hills, -5c at the top, and enjoyed really hot soup which had been in the flask for 4 hours, and which I had to let cool before I could drink it. I had the remainder when I returned to the car a couple of hours later, and it was still very hot.
Great flask, certainly well-named Ultimate.
Stainless steel flask are more compact and lightweight than their glass equivalents.
Why buy this model?
For the well-designed pourer/stopper and because it keeps the contents hot or cold for much longer than more basic models.
Is it easy to carry?
Yes. There are silicon-type bands and the top and base for grip. The cylinder is narrow enough to grasp comfortably. The flask fits easily and securely into a Lifeventure water bottle pouch and the exernal mesh pockets of a PacSafe VentureSafe 300.
Why is it a good flask for hot drinks?
The flask contains enough hot liquid (0.5 litres) to keep you warm on a cold day of hillwalking or hiking, without the weight of the filled container becoming a distraction.
Why is it a good flask for cold drinks?
It contains enough liquid to keep be worth carrying in the heat of summer (the same amount as a 500 ml carbonated drink bottle), yet is not so bulky or heavy that the filled flask becomes a distraction. As the filling aperture is much wider than a normal soft drink bottle, the flask can easily be refilled from taps, public water fountains, or other bottles. Better yet - the aperture is wide enough that ice cubes can be added.
I have now had this flask for two years. It still performs just as well as when I first purchased it. The rubber and silicone elements are still in excellent condition and the thermal qualities just as good as when originally purchased.
If you like good product design and enjoy using well made items then this is the flask you need to get.