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Virtual Frame


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  • #1227639
    John G
    BPL Member

    @johng10

    Locale: Mid-Atlantic via Upstate NY

    Which way of using a foam sleeping pad as a virtual frame gives the best weight transfer ? (Assuming side compression straps are used to cinch the load tight, etc)

    Option 1. Pad rolled into a loose tube with all the gear stuffed inside it.

    versus

    Option 2. Pad folded back and forth and stored along the back / inside of the pack.

    Also, how well does the weight transfer of using the pad as a virtual frame compare to using a pack with a "framesheet" that is really just a thin piece of flat plastic ?

    Thanks.

    #1423081
    Jonathan Ryan
    BPL Member

    @jkrew81

    Locale: White Mtns

    I have done each method and I found that the rolled up pad with gear stuffed in the middle is mouch more effective at distro'ing weight. In the Grand Canyon last year I carried 32 lbs (8 lbs of gear and 2 gallons of water) and I was comfortable all things considered.

    #1423093
    Richard Matthews
    Member

    @food

    Locale: Colorado Rockies

    The rolled tube works best for higher weights.

    Another issue is the distance between the heavy dense things in your pack and your back. A 40" long .5" thick pad folded moves the weight a minimum of 2" away from your back and that can create a leverage effect.

    A virtual frame can be just a rigid as metal stays. The advantage of metal stays is that you can bend them to conform to shape of your back.

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