Cold water,
all day
long
A plain steel cap and a wide lip, so it drinks like a glass. Cold for 24 hours, hot for 12.
- Steel cap€6 spare
- Silicone seal€4 for three
- Two steel wallsVacuum between
- 340 g empty18/8 steel
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Double-walled steel, 340 g. Made to be refilled for years, and sent with no plastic.
See the colours
New this autumn
Travel tumblers
Sand, sage and charcoal, in 470 or 600 ml. Coffee stays hot for six hours with the lid on.
€32
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Cold for 24 hours
Two steel walls with a vacuum between them
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Hot for 12 hours
Tea at the top of the hill, still too hot to gulp
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Every part sold alone
A lost cap is €6, not a new bottle
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Ten-year guarantee
If it stops keeping cold, we send a new one
Why the name
A tarn is a lake high in the mountains.
We started in 2019, after a summer of carrying plastic bottles up to the lakes above Annecy and carrying them down again. One bottle, kept for years, is less to carry.
Visit the studioFor shops, cafés and offices.
We sell by the case of 24, in any mix of colours, from €22 a bottle.