The thermos holds the heat well for nearly 24 hours. Stays hot for hours on a long cold hike. I make coffee very hot at 7am, stays hot for a long time, still very warm if i drink from it at 7pm, which is decent.

This works really well. Looks stylish. I bought in red colour, it is not primary red but is a nicer richer darker tone.

This is the best flask i have ever received and gifted. Over the past 15 years have tried so many flasks. Fab flask - gorgeous colour.

Really good brand and keeps water hot for over 24 hours. I replace mine every 4 years or so because i use them daily. Thermos now has a very tough market to trade in but still trades on its excellent premium trade name.