SummitPost.org

doc1911 wrote:I just got back a week ago. I had a -20F bag, VBL and liner and never slept in more than layer 1 until 17K Camp. This time of year you really don't need a -30F bag. Save some space and weight and go with a 0F or -10F bag and use a VBL and maybe a thermal liner.

I would not be so quick to dismiss the need for a bag warmer than -10F. And not everyone enjoys using a VBL. One should plan accordingly based their planned clothing options, tent style (single wall vs double wall), and on an average of historical temps as opposed to a single year's weather. Personally, while I did sleep with my -20 bag unzipped most nights, there were definitely 2 nights @ 17 where I was glad I had it in early June '06. My $0.02

I think it depends a lot on personal experience. I went with a -15 bag cut large to accomodate most of my clothing, all of which I was happy to wear at 17k as temps dipped below -30F at night.

Summitted within 9 days. Thanks to everybody on this board for the advice! Here are some pictures from the expedition - http://bit.ly/kCfpe1

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in my opinion, a very dangerous post

sanders wrote:Summitted within 9 days.

Congrats