Thermos Mountain FFX is the world’s top in the field of outdoor thermoses. You will not find a thermos with better parameters at the moment. The thermos is designed to meet all the requirements for a bottle for a mountain environment: easy opening and closing, impact resistance, high insulation performance, low weight and compactness (only 300×80 mm!).
The thermos is very light. Its weight is comparable to titanium thermoses, which are much more expensive.
The thermos keeps drinks warm for a very long time – after 6 hours the temperature of the drink is still above 80°C (initial drink temperature 95°C, ambient temperature 20°C). The specific feature is a narrow neck with a diameter of 36 mm with a special double closure.
The perforated cup of the thermos is made of two materials of different hardness so that it does not slip when opening the thermos. The wide bottom provides increased stability of the cup and at the same time ensures easy grip when removing the thermos from the backpack. The volume of the cup has been increased compared to the previous version of the Thermos Mountain.
