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Subterra Carry-On 40L Bag

4.586206896551724 out of 5 stars
29 Reviews



Why We Like The Subterra Carry-On 40L Bag

Nothing derails a vacation like the airline losing your luggage, but you also don't want to end up severely short on supplies just because you wanted to avoid checking a bag. Thule has a travel solution for you in the form of the Subterra 40L Carry-On Bag. It's designed to fit in an overhead bin while maximizing space so you can take advantage of every allowable square inch of space.

A mesh divider in the middle keeps your clean and dirty clothes separated as the trip goes on, and the removable laptop sleeve keeps your computer within easy reach during long flights. Stowable straps give you the option to carry it as a shoulder bag or a backpack for easy toting as you make your way around foreign cities. Thule also added a pass-through sleeve on the back panel that lets you stack this bag on the handle of your rolling luggage when you have a lot of gear to haul.


  • Travel bag designed to maximize space
  • Fits most airlines' carry-on requirements
  • Stowable straps let you carry it as backpack or shoulder bag
  • Laptop/tablet sleeve can be removed
  • PowerPocket keeps cords and chargers organized
  • Mesh divider keeps clean and dirty clothes separate
  • Pass-through strap lets you attach it to rolling luggage
  • Item #THU004J
800D nylon
40L (2440cu in)
Backpack Carry
stowable straps
1 removable laptop/tablet sleeve, 1 PowerPocket
8.3 x 13.8 x 21.7in
Claimed Weight
3lb 8oz
Manufacturer Warranty
limited lifetime

Overall Rating

4.5 based on 29 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 2 reviews
4 Stars - 5 reviews
5 Stars - 21 reviews

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

June 14, 2024

Great for travelling up to two weeks

I bought this bag for a two week trip to Italy. I loved it and found it to be the perfect size for all my items…including a CPAP machine. When we returned home from our trip, my wife went and bought one for our next trip.


Originally reviewed on manufacturer

5 out of 5 stars

March 3, 2024

Well made and sturdy

I bought this following a trip to Europe with a wheeled carryon, as I was frustrated with how much more mobile my travel companion was carrying just a backpack. This is ideal for a single person for a week or so, or a couple for a weekend. Very roomy. Used it for a subsequent trip and was able to fit all my stuff for a week at the beach, plus some of our kids stuff. As a carryon, I just used the included laptop bag and it was big enough for a laptop, tablet, kindle, and Nintendo switch, plus a large book, plus some snacks. I echo previous comments - a bit awkward accessing the main pouch with the backpack straps attached, but not an issue for the type of travelling I usually do. Also note that there isn’t a water bottle attachment, but a carabiner holds my Nalgene on no problem. Overall very happy with the purchase. We already have a Thule Subterra suitcase (the large one that zips apart to become two bags) and this suitcase is just as functional. Great job Thule.


Originally reviewed on manufacturer

5 out of 5 stars

January 2, 2024

Best traveling backpack I've ver had

The slick and simple, yet full of pockets, design allows this backpack to even fit under the seat when overhead compartments are full. The smart design of the computer+documents bag pocket allows you to easily access it when going through security and before you get into your seat. Another feature I really appreciate is the opening of the backpack as you would open a regular suitcase allowing access to all of your items. Overall a great backpack with high quality materials and construction. I tend to pack a lot of things and this backpack is able to last under that pressure


Originally reviewed on manufacturer

3 out of 5 stars

December 15, 2023

Great but the shell could be harder.

Great bag but the shell could be harder. I really prefer the carry-on 4 wheels with compression plate. It was smaller a little bit but hold stuff much better according to the harder shell and compression plate. A little bit disappointed.


Originally reviewed on manufacturer

5 out of 5 stars

September 23, 2023

Thule Subterra

The perfectly sized bag for short trips or carry-on bag. Well constructed, quality materials. Plenty of space and convenient pockets for easy access. The separate laptop sleeve is great as a stand alone laptop/office bag, or separate for additional items. This is my new go-to weekend/over night bag.


Originally reviewed on manufacturer

5 out of 5 stars

August 4, 2023

My go-to travel bag

I don't have any cons of the bag so far. I have been using this bag for 2 years or so. i have flown, gone backpacking and road trips with this bag. it holds SO much! it is definitely capable of taking you on any short adventure. I have been able to pack 4-6 days in this bag several times. The outside is durable and these zippers will take a beating.


Originally reviewed on manufacturer

5 out of 5 stars

June 12, 2023

Best bag ever

I had a lot of backpacks, bags and this one is the best. Lot of place and you can use different kinds of straps


Originally reviewed on manufacturer

5 out of 5 stars

June 4, 2023

Really good quality

Bought it a month ago, felt in love with the product!

Keven 1221

Originally reviewed on manufacturer

4 out of 5 stars

April 1, 2023

Love it but needed to purchase cart

I’ve had this bag about 4 years now. I adore it and have done 10-day trips (with 1 load of laundry at day 6). Extremely well-thought out - love the laptop sleeve and pocket in particular. I put the shoulder strap on laptop sleeve to head to meetings at my destination. However, once your laptop is added, the bag is so heavy that carrying any distance as tote or backpack is not very feasible. I ended up buying a little luggage cart when I had a (bag-unrelated injury) in Chicago and carrying it went from infeasible to impossible. So far no one has objected to it as carry on with bag and wheels. If you’re up for a luggage cart , it’s an excellent travel bag.


Originally reviewed on manufacturer

5 out of 5 stars

March 5, 2023

Very useful piece

Lightweight, functional, many pockets, laptop sit nicely inside. It’s a bit too big. Because I am a short person. Simple look. Just love it.


Originally reviewed on manufacturer