my ueber-bivy is a MSR Twin Sisters tent - 2 pounds, 4 season capable, room for three in a pinch.



inside space video - I'll have this all to myself next month http://youtu.be/igWID9LO6lc

I can't imagine waiting out a storm in a true bivy - I need at least enough room to have my gear inside and possibly cooking space. The weight difference is minimal. Bivy is great if you are on a short trip and just need a potential retreat if things go bad. I do longer trips and a bivy is just not living space.

I suppose on Whitney the bivy is the idea shelter, as 99% of those going up only spend one night or maybe two on the mountain.

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