Wouldn’t it be nice, especially over winter, to be able to take a nice cup of tea* with you on a bike ride? A source of refreshment, caffeine, antioxidants and sugar that tastes so much better than energy drinks.
You can of course take a thermos with you, but this is not only heavy (requiring a bag to carry it) it also means stopping to drink it. Its nice to stop and enjoy a view for sure, but generally I prefer to keep going, especially as stopping can mean getting cold.
So, what I was looking for was the equivalent of a normal plastic water bottle (or ‘bidon’ if you’re poncey), that can be stored in a bottle cage and squeezed into my mush on the go, but will also keep my tea drinkably hot. Until recently, the closest I’d found was the [Biologic Vacuum Flask](http://www.charliethebikemonger.com/biologic-vacuum-flask