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REI 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)


Item 809172

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REI Quantum Messenger Bag Specs
Best use
Messenger bag
21.5 liter
1,312 cubic inches
4 + main compartment
17 inches
Recycled PET
18 x 14 x 6 inches
2 lbs. 3 oz.
Bag style
Gear capacity (L)
Gear capacity (cu. in.)
Number of exterior pockets
Laptop compartment
Fits laptop size (in.)
Carry-on size

REI Quantum Messenger Bag

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REI Quantum Messenger Bagis rated4.4286out of5by7.
Rated5out of5byfromPerfect Bag for my larger laptopAmazing messenger bag to use for a larger laptop (mine is 15.6") while walking/biking to the nearest coffee shop or library for Internet access! Plenty of space for charging cord, notebook, coffee container in main compartment. Smaller compartment has 2 zippered areas that I use for ID, $$, etc. Outside zippered space is big enough for house keys, bike lock keys, pen, small notebook. Shoulder strap swivels at its' ends (for cross chest use) and has a padded piece that moves for adjustment. This bag is amazing and has every function I needed (to replace my Novarra messenger bag that didn't accommodate a laptop. Am seriously thinking about buying Rei's Quantum Backpack because it is equally well made, a beautiful color, a two-toned tone red & burgundy, with all the same features. Did I mention the 2 mesh water bottle holders? Thanks, Rei!
Date published: 2013-09-26
Rated5out of5byfromThe Perfect On-The-Go BagI became a fan of messenger bags while living in Russia in the late '90s. Since returning to the U.S., I've been looking for a good bag that was reasonably priced, conservative in appearance, sturdily constructed, and practical. It took over a decade to find a bag that is all of those things, and this is it. The top flap provides excellent protection for inclement weather, computer compartment(s) are well-protected, and mesh pockets inside the main compartment provide convenient storage for bulkier items such as adapters and cables that don't stow well with papers or folders. The weather-resistent zipper providing direct access to the computer pocket(s) is very convenient for airport security and day-to-day quick access. My sole complaint is that I wish it were slightly more formal in appearance--a solid black option would have been nice.
Date published: 2013-05-20
Rated4out of5byfromGood bag!I use this bag 5x/week to carry books, folders, water and a 15" laptop to work. So far, so good. It looks good, strap is fairly comfortable, it's roomy and seems well constructed. It replaces a Kensington bag of similar dimensions that served me well for 5 years until the zippers failed. I sense that the zippers on this REI bag will fare better.
Date published: 2013-04-28
Rated4out of5byfromJust rightThis would get five stars if the shoulder strap was just a tad thicker and better padding. A wider strap with better padding will make a heavy bag feel lighter.
Date published: 2013-04-24
Rated4out of5byfromFunctional and understatedI travel/fly for work almost every week so I needed a durable bag computer bag for flying and taking to client sights. So far this has been a great bag. It is larger than I expected and swallows my laptop and files with plenty of room left over. Love the water bottle holder on both ends and the zipper on the back to access the inside without opening the flap. Cons- Not particularly stylish for office use. Little worried about durability of the rear corners. Otherwise, I love it and would recommend.
Date published: 2013-02-27
Rated4out of5byfromA fine example of "form, fit & function"A great bag for the purpose. A good value as well.
Date published: 2013-01-30
Rated5out of5byfromBest Messenger Bag!Great design and well organized. Plenty of room for all that you have to haul from the office to the road. Attractive to carry as well.
Date published: 2012-10-10

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