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The small-size REI Ultra dog pack combines ingenious features with durable, high-quality materials that will make your dog's backpacking experience sheer joy!

  • Features

    • 100% post-consumer recycled PET body is built tough to stand up to heavy outdoor use
    • Sleek and lightweight cord compression system pulls the pack load up and close to the body for unmatched stability
    • Water-repellant zippers help seal out the elements and protect the contents from moisture
    • Zippered expansion panels let you increase or decrease the saddlebag volume to match your dog's load
    • Small zippered top pocket on each saddlebag holds small items within easy reach
    • Harness combines mesh for breathability and padded sections for comfort; perforated EVA foam reduce weight without sacrificing comfort or durability
    • Short lead is integrated into the harness handle to help guide or hold your dog when a longer leash isn't needed or available
    • High-strength aluminum leash ring is easy to grasp while clipping on a leash
    • Harness buckles feature a unique cam lock to eliminate webbing slip, especially when wet


    Sizing is based on girth, which is measured around the widest part of your dog's rib cage.
    View all REI Co-op Dog Packs
  • Technical Specs

    Best Use


    Gear Capacity (L)

    6.9 - 8.4 liters

    Gear Capacity (cu. in.)

    427 - 518 cubic inches

    Number of Exterior Pockets

    2 + 2 main compartments


    Recycled PET


    8.25 x 6 x 4


    1 lb. 1 oz.

    Fits Dogs

    26 - 35 in. chest girth

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