First impression when unpacking: now that's a massive bottle !! Very nicely solved: there are 2 cups (top & bottom). The handle is very stable, so you calm the bottle conscience also fully "refueled" can bear at Henkel. Included is a lanyard made of nylon. I habs not taken off because me too much "tweaking" :-)!
Now for the heat test: Have a good piece filled at 15:30 with hot water from the kettle ... So really cooking! At 20:30 the first time let out a cup and it has evaporated :-) and was still piping hot !!! 23:30 Then the same game: the water still has evaporated and they wanted the finger no longer than a second purely :-)! The pouring is absolutely dripping and spills free of ziplock holds 100% leak-proof, even if the bottle is turned upside down again!
So I can give a strong buy recommendation on the bottle !!
The only drawback: it is not easy! But does not fit 1L liquid pure ... as with most only 500ml ;-)!