I have a thermos that I use almost daily. I make a pot of coffee and take it to work in my Thermos. Go winter paddling and take a thermos of coffee to
warmup with on breaks. Recently the Thermos stopped keeping the Coffee hot. Called Thermos and they said "send it back". The week after sending it back I got a new replacement on my doorstep. The amazing thing is that when they said life time warrantee they were serious. This is the third time they replaced the thermos. Once from a drop where I screwed up the cap and offered to buy another one ("send it back ")once when I dropped it and it stopped keeping stuff warm and now this time where it just stopped keeping stuff warm.
Good job Thermos!