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Tom Bihn Forums: Community discussion on travel bags, laptop bags, and backpacks. Tom Bihn has been designing and making bags since 1972. The best materials and innovative construction.

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  1. #1
    Registered User
    Join Date
    Jun 2005
    Posts
    2

    How'd you get that volume number?

    Your Empire Builder bag dimensions are listed as 17"x12.75"x7" which gives a calculated maximum volume of 1517.25 cu. in. But your product page lists the volume at 1700 cu. in.

    How'd you do that?

  2. #2
    TOM BIHN Crew (we work here) Darcy's Avatar
    Join Date
    May 2003
    Location
    The far west
    Posts
    5,018
    We use packing peanuts to figure out the volume of the bags, and when they are packed full the bag expands, making the volume more than the maximum calculated volume.
    Current Carry: Skookum Dog Citizen Canine, Founder's Briefcase, Synapse 19 (day hikes), Guide's Pack (longer day hikes), Yeoman Duffel (winter/emergency stuff for the car), Aeronaut 30 (travel), Night Flight Travel Duffel (camera bag), Moveable Feast + Shop Bags (food)

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