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From a two-wheeled commutes to a two-footed runs between gates.

Pay proper tribute to all the minimalist travelers to have come before you and pave the way for the billions to come after when you wear the hard-working Patagonia Half Mass Bag over a shoulder. Urban, suburban, international, school, and work adventures require a fair share of things that you can't be without, and the Half Mass offers the space and versatility to transport those necessities in style.
  • Reflective piping on the front flap and removable shoulder strap sleeve enhance your visibility to motorists
  • Large exterior zip and multiple internal slot and zip pockets offer tons of organization for smaller items
  • Large capacity cargo area provides ample storage for a variety of different uses
  • Holds up to 17-inch laptop in suspended, padded pocket

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Review Summary
8 4
1 3
0 2
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Patagonia Half Mass Bag - 1343cu in

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Here's what others have to say...

5 5

Great Bag!

  • Familiarity: I've put it through the wringer

I bought this for my partner who is an organizer. He uses it every single day and loves it. It's great for holding everything he needs including extra layers. It is comfortable for canvassing but can get his back pretty sweaty during the summer.

Is this waterproof like the Patagonia Black...

Posted on

Is this waterproof like the Patagonia Black Hole Messenger Bag?

Responded on

Hey Kate,

The bag is not water proof, it's water resistant. It's got a DWR coating (Durable Water Repellant) so it'll resist light rain, however it'll eventually soak through.

Does this item have a cross strap for...

Posted on

Does this item have a cross strap for stability when riding a bike?

Responded on


Yes, comes with a stowaway waist strap.

5 5

Wow! Great Bag!

Fantastic! The perfect substitute for the classic briefcase. Very functional, I lug around my 17 inch HP notebook back and forth to work each day, fits great into the sleeve. On the interior I keep my iPad and a couple notebooks, powercord and ethernet cable with room to spare. Great compartments for cords, business cards, wallet, pens/pencils, flash drives and all the work essentials. I ride my bike to work from time to time and the extra strap is great for keeping it on my back, not to mention the reflective strip keeps me safe and visible. Well done! When this one wears out I know I'll be replacing it with the newest model. An absolute slam dunk!

5 5

Great bag

Surprisingly hard to find the perfect commuter bag, but this comes pretty close. Great size for lugging a computer, book or two, jacket/extra layers, and coffee mug. Very comfortable to wear,and the carry handle option is great to have. Handy computer sleeve, tons of little storage pockets for odds and ends. I didn't think that the "high visibility" interior would make much of a difference, but it is way easier to find things in this bag compared to the dark black hole that was my last one. Another great product from Patagonia.

5 5

Perfect man-purse.

Stores everything I need to keep with me, without being bulky. Even room for an iPad in a mil-spec case in the back pocket.

Unanswered Question

can I pay for this bag with an Irish Credit...

Posted on

can I pay for this bag with an Irish Credit Card? I want it shipped within the US

5 5

Awesome bag

  • Gender: Male
  • Familiarity: I've put it through the wringer

I got this bag back in July for commuting on my bicycle from Brooklyn to Manhattan, since I was tired of carrying a backpack. This bag has more than exceeded expectations around the city, but it really shone on a recent trip to Costa Rica. I was in a downpour in the rainforest, and everything in the main pocket stayed completely dry. Cameras, clothes, everything. The outside pockets are not waterproof, so some papers in there got wet, but be a little prepared with a plastic bag and everything will stay dry!

Love this bag. I wish I had gotten it sooner.

5 5


  • Gender: Male
  • Familiarity: I've used it several times

This bad is awesome, im kind of a small guy so the strap is perfect. i also love that the flap does not have velcro, i hate that stuff its to loud. the tuscany olive color is great.

5 5

Great Bag!

Definitely a great bag. Fits my 13" laptop, and could probably fit a 15". The waist strap is essential for biking to school! And so much more stylish than a backpack. I wouldn't mind a little more room, but I can fit a whole day's essentials (lunch, notebooks, computer, jacket, nalgene, mug) without issue.

4 5


This bag is pretty great. Fits a laptop and an extra days clothing. It also has a cross strap so you can ride your bike without it slinging all around.

5 5

Half Mass + the Rain

So, I really wanted a bag that had 1) room for a laptop, and 2) was fairly waterproof. I went with the Patagoina because they touted it as a messenger bag with no problems in the rain. Today was the first day that it rained really hard since the semester started here in Chicago. When I looked at my bag half way through my morning trek, I was a little worried because it was looking pretty saturated. I also worried about water getting in near the top corners where the strap attaches to the bag (there's no real "zipper" covering here, just the flap).

When I got to school however, everything was dry inside! Even the front zipper pocket was completely dry. I didn't have anything in the pouch pocket in the rear, but it seems like that pocket is sort of damp, which would be a problem if I was carrying any papers here. I would have liked to see a zipper on that pocket. Also, my water bottle pocket is wet, but that was to be expected because it is completely exposed to the elements.

My biggest complaint right now is the pad on the strap. When it got wet, it stayed wet. It is great most of the time for padding my shoulder, but I don't like how it acted like a sponge when the rain came.

Other than that I actually love the bag. I love the second strap that holds the bag tighter to your body. For walking long distances, or riding your bike this strap is ideal.

As far as size goes, the bag carries my laptop, and easily three textbooks, although I try not to carry this many because it gets rather heavy. I also bought this generation as opposed to the previous one because of the pencil slots and the extra pockets.

Overall, it is well worth your while. Get this bag.