New answers tagged winter
2
A smaller flask is of course lighter, but loses heat faster and holds less. Your whole drink strategy needs to be considered.
A litre is a lot though, unless sharing - there's plenty of choice of 500-600ml flasks; one I found easily weighs 300g (compared to 530g for their lightweight 1l model. Thermos, the brand I've linked, has been in the business a long ...
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