REI Co-op  Trail 40 Pack - Men's

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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.


  • Updated from previous versions, body and lining fabric are now made from recycled material
  • 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
  • Recycled oxford nylon bottom is highly abrasion resistant
  • 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 not included)
  • 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
  • Made to reflect our love for people and the planet through the use of recycled nylon and bluesign®-approved materials
  • Recycled materials keep waste out of landfills and bluesign®-approved materials conserve resources and protect the health of the environment, workers and wearer (you!)
  • Contains materials that meet the bluesign® criteria
  • REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits


View the REI Co-op Trail Product LineView all REI Co-op Daypacks

Technical Specs

Item #168485
Best Use


Bag Style


Frame Type

Internal Frame


Recycled ripstop nylon; recycled nylon (bluesign® approved)

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

Contains recycled materials

From a Climate Neutral Certified brand

193 reviews with an average rating of 4.5 out of 5 stars

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