REI Co-op Quantum Messenger Bag

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The REI Quantum Messenger laptop bag offers an updated take on a classic design, sporting plenty of improvements to keep up with a world that moves as fast as you do.


  • 100% post-consumer recycled PET fabrics are tough enough to withstand the urban grind and soft enough to feel good doing it
  • Carries up to 17 in. laptop computers, in a fully padded pocket easily accessible via water-resistant zipper on the back panel; making removal at airport security painless
  • Sculpted top flap; shoulder-panel design securely covers main compartment; exterior zippered pocket accommodates travel documents, tickets and boarding passes
  • Removable shoulder strap includes an ergonomic pad for comfortable carrying during active commutes; padded top handle lets you carry bag like a briefcase
  • Internal organizer includes pockets for pens and business cards, and a microfleece-lined pocket is perfect for phone or MP3 player
  • Stretch mesh pockets on both ends of the bag hold water bottles or small essentials for easy access.
  • Reflective trim creates great visibility for active commuters; webbing loop provides reliable attachment point for LED blinking light (sold separately)


View all REI Co-op Messenger Bags

Technical Specs

Best Use


Bag Style

Messenger Bag

Gear Capacity (L)

21.5 liter

Gear Capacity (cu. in.)

1,312 cubic inches

Number of Exterior Pockets

4 + main compartment

Laptop Compartment


Fits Laptop Size (in.)

17 inches




Recycled PET


18 x 14 x 6 inches


2 lbs. 3 oz.




From a Climate Neutral Certified brand

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