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How much warmth does a bivy add?


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Home Forums Gear Forums Gear (General) How much warmth does a bivy add?

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  • #1307268
    Max Dilthey
    Spectator

    @mdilthey

    Locale: MaxTheCyclist.com

    Generally, how much further can I take a sleeping bag in cold temperatures using a bivy sack? Does it vary drastically or is there a generally accepted approximation?

    #2021376
    Jason Elsworth
    Spectator

    @jephoto

    Locale: New Zealand
    #2021377
    Richard May
    BPL Member

    @richardm

    Locale: Nature Deficit Disorder

    From my experience it isn't so much about adding warmth as it is protection. With a small tarp it'll protect from spray and the bottom is a ground cloth. It creates a layer of still air around the bag/quilt so it doesn't loose heat to moving air as easily.

    I don't think it adds warmth per se. Bags are often rated for 'in-tent' conditions so the bivy makes up for the lack of coverage of tarp/cowboy camping.

    I use a bivy for bug control and often for-go the insulation layer… but that's only when I'm out near the coast.

    #2021393
    Max Dilthey
    Spectator

    @mdilthey

    Locale: MaxTheCyclist.com

    Oh, shoot. Bonehead moment. I'll go read my own thread….

    This is so embarrassing.

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