REI Co-op Signal 40 Pack

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The REI Co-op Signal 40 pack has several travel tricks up its sleeve to maximize your carry-on capacity, carrying comfort and security when you reach your final destination.

  • Features

    • Slash-resistant, coated foam at front and bottom protects against slash-and-grab theft
    • Backpack strap can be buckled to fixed objects to discourage grab-and-go theft
    • Shoulder straps tuck behind the back panel in case you decide to check the Signal 40
    • Adjustable, padded messenger-style strap offers easy one-shoulder carry; strap hides away in a bottom pocket when not in use
    • Padded top and side luggage handles make it easy to snatch the bag off a luggage carousel or out of the overhead compartment
    • Padded laptop pocket separates laptop from main compartment, making it easier to get your laptop out for TSA
    • Laptop, main pocket and quick-access top pocket are all protected by weather-resistant stormflaps
    • Organizer panel in the main compartment helps you keep your passport, keys, cards and other valuables orderly
    • Padded back panel and shoulder straps offer carrying comfort; sternum strap helps stabilize the load
    • Side water bottle pockets help keep you hydrated
    • Zippered top pocket allows easy access to snacks, sunglasses or electronics
    • This item meets carry-on size restrictions for most airlines (size not to exceed 45 linear inches when adding L+W+H; this is subject to change, so check with your airline)


    View all REI Co-op Travel Daypacks
  • Technical Specs

    Best Use


    Bag Style


    Gear Capacity (L)

    42.75 liters

    Gear Capacity (cu. in.)

    2,609 cubic inches

    Number of Exterior Pockets

    9 + main compartment

    Laptop Compartment


    Fits Laptop Size (in.)

    17 inches






    22 x 12.5 x 8 inches


    3 lbs. 6 oz.



    Frame Material

    HDPE framesheet

  • Reviews
    11 reviews with an average rating of 3.3 out of 5 stars

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