REI Co-op Flash 18 National Park Pack

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The REI Co-op Flash 18 National Park Pack lets you go light and give back, with 5% of the sales of this lightweight, versatile daypack going to support our national parks.

  • Features

    • Limited-edition prints are inspired by actual National Park Service maps, tracing park routes more than 100 years in the making
    • Turn the pack inside out and it's a stuff sack to help organize your gear; once at basecamp, reverse it and use it as a daypack for short hikes away from camp
    • Removable back panel pad doubles as a sit pad; removable hipbelt and sternum strap make the pack customizable for different uses
    • 2 interior pockets secure keys and other small items; external zippered pocket
    • Hydration-compatible design has a hose exit port and an internal sleeve to hold a hydration reservoir (sold separately)
    • Top-loading entry features an efficient drawcord that cinches skirt closed with a single tug; a small flap covers the opening when cinched closed
    • Front of pack features single daisy chain running vertically and a tool loop at the bottom for attaching items on the front of the pack
    • 5% of the sales of this product will be donated by REI Co-op to support our national parks


    View the REI Co-op Flash Product LineView all REI Co-op Daypacks
  • Technical Specs

    Best Use


    Bag Style


    Frame Type




    Gear Capacity (L)

    18 liters

    Gear Capacity (cu. in.)

    1,100 cubic inches


    11 ounces

    Fits Torso Length (in.)

    17 - 19 inches

    Fits Waist/Hips

    26 - 42 inches


    Ripstop nylon

    Pack Access


    Number of Exterior Pockets

    1 + main compartment

    Reservoir Compatible



    18 x 9.5 x 8 inches



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