"Extraordinary warm... but difficult to pack it." - Review of The North Face Dark Star Sleeping Bag: -40 Degree Climashield Neo

I used it a 1 week "expedition" on Monte Bianco with a "base camp about 4400m (we were testing other equipments for a Pamir expedition) with a CAMP XP2 tent. The temperaturs were constantly about -30 - -35C (in winter). It was incredibly warm, but it's difficult to pack it. It fill up to 1/2 of my backpack (80 lt.!)even using its compression sack, and that's a problem. So in my opinion it is a sleeping bag only for serious expeditions (artic or high altitude) or for summit pushes if you want an insurance in case of a bivy on the way down without tent shelter possibility. Absolutley NOT TO USE if you have to pack-unpack every day (need about 15min. to pack it - if you are used to do it...)
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