REI Co-op Trail 40 Pack - Men's

This product is not available. Good news: we have a newer version.

Shop newer version

Built for comfort, the REI Co-op Trail 40 pack holds plenty of gear for day hikes, overnights and travel. It gives you easy access to your stuff and has tons of handy organizer pockets.

  • Features

    • Spring-steel perimeter frame provides load support while also allowing the back panel to conform to your torso
    • U-shaped panel opening with 4 zipper sliders offers quick access to gear and total access when fully open
    • Inside the main compartment is a mesh side pocket and a back pocket
    • Padded, mesh-covered straps, belt and back are cool and comfortable
    • Forward-pull hipbelt design makes adjustments quick and easy
    • Side mesh pocket with elastic closure; outer pocket for phone or sunglasses; sleeve for hydration reservoir (reservoir sold separately)
    • Top has a zippered pocket on the underside for your keys and valuables; zippered hipbelt pockets let you access snacks and other essentials as you hike
    • Special fasteners on the back hold trekking-pole tips down low and pole shafts up high
    • Included raincover stows in its own zip pocket


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

    Best Use


    Bag Style


    Frame Type

    Internal Frame

    Gear Capacity (L)

    40 liters

    Gear Capacity (cu. in.)

    2,441 cubic inches



    Frame Material

    Perimeter spring steel

    Pack Access


    Number of Exterior Pockets

    6 + main compartment



    Hipbelt Pockets


    Raincover Included


    Reservoir Compatible





    Contains materials that meet the bluesign® criteria

  • Reviews
    64 reviews with an average rating of 4.3 out of 5 stars

    Loading Reviews...
  • Questions & Answers

    Loading Questions...