Looking for a flask that can handle extreme mountain conditions and weighs just 330 g? The Thermos Mountain FFX is a lightweight, stainless steel vacuum flask with a cup and a 750 ml capacity. It is compact, durable and easy to open, even when wearing gloves.
- Excellent long-lasting insulation
Double-wall vacuum insulation and a narrow 36 mm opening with a double stopper keep drinks above 78 °C after 6 hours (starting temperature 95 °C, ambient temperature 20 °C). - Easy to use, even with gloves on
The non-slip ring, shaped cup and double stopper can all be operated while wearing thick gloves. Simply loosen the inner part of the stopper by half a turn and you are ready to pour.
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Flask weight |
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High insulation performance |
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Non-slip flask cup |
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Non-slip ring |
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Double flask stopper |
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Flask base protection |
- Very lightweight, just 330 g
- Durable stainless steel
- Non-slip cup made from two materials
- Silicone base protector
- Watertight removable stopper
Specifications:
Product type: vacuum flask with cup
Capacity: 750 ml
Height: 260 mm
Diameter: 80 mm
Opening diameter: 36 mm
Weight: 360 g (330 g without the non-slip ring and protective base cover)
Keeps hot: 30 hours
Keeps cold: 32 hours
Material: stainless steel
BPA-free
Before the Thermos brand became famous, it was just an idea. Ambition. A scientific feat that turned into a breakthrough innovation in the home. In 1904, Thermos was the first company to develop consumer products using vacuum insulation. The origin of the company's name can be found in the Greek language, where one of the meanings of the word "therme" is "hot". The company name THERMOS became the basis for the common name of the insulating bottles - thermoses.
With our durable double wall stainless steel vacuum insulation technology, you're sure to find a product that fits your lifestyle while providing superior performance with exceptional durability.











