Copes with the task, I work in a quarry on a dump truck. For winter fishing, if not on the ice, and in a tent, I think I should hold out for 5 hours.
Has some pros:
Keeps the temperature, brewed at 5 pm, at 5 pm the next day the tea is still smoking. The thermos lies in the working car, spends an hour in the cold in a backpack. The lid is convenient for pouring, the neck is narrow. Comes with a spare rubber band for the lid.
Cons:
Wash inside. But this is a problem with any thermos with a narrowSee full review