A combination of a vacuum flask and a thermal mug.
The thermo mug is nothing else but a thermos without the srew-on cup over the pour plug.
Thanks to this design we can handle the thermo mug with one hand. You only need to push the button which opens the valve and we can drink directly from a suitable cap which is integrated with the valve. The integrated valve prevents liquids from spilling- we can carry the mug in a backpack, bag, etc. On hunting ground such a design is extremely convenient.
Technical information:
Volume 400ml
Design: stainless steel, vacuum insulated walls
Designed for car cup holders
The thermo mug keeps the temperature at a similar level in comparison to thermal flasks.