In December 2011 I bought this black stainless steel thermos cup of Primus.
The cup kept well sealed and the coffee really very long warm. The 0.4L I have so drunk during long car trips in the first 2 hours and the last mouthful was hot.
What I did not find so great was the hakelige ziplock: Sometimes the cup was not open and then you have him back with both hands up and turn. You must attend the "pressure point" to find out: So screw it, that the cup but grade is dense not a little bit stronger, because otherwise checked the knob. In a thermal mug in this price range I expect that something works without quirks.
The coating of the cup began very quickly peel off at the edges, but that does not bother me, somehow I am even sure if the Bescher to "use" looks ... ;-)
After a little more than 1 year in use happened to me a mishap: I dropped the lid and he fell so badly that the closure plate Undere broke. That was no longer mend. The cup can still continue to be used, but is no longer sealed.
I wanted to buy a replacement cover, but I got no, neither the dealer where I bought it, nor anywhere in the network. Reason: There is a newer model in the market and there is for the "old" no replacement cover.
LG
Red Zora