A night in a tent or mountain hut in sub-zero temperatures is a warmer experience with the ATMOSPHERE PANTS.
They are filled with lightweight, high performance duck down for best-in-class insulation at a minimal weight. For the lower legs, knees and seat we have used robust MICROGUARD ECOSPHERE insulation instead of down. This is less sensitive to moisture than down and better able to withstand compression.
When you no longer need them, the trousers can be stuffed in their pack bag and take up very little space in your rucksack.