Thule Subterra Travel Backpack 26L, Dark Slate

Dark Slate: The Thule Subterra travel backpack is a 26L expandable carry pack with sleeves for a 16-inch laptop and 10.9-inch tablet. Its removable packing cube, internal organization and luggage pass-through suit buyers who want work-device storage and travel packing in one bag.

At a glance

Expansion offers a listed change from 26L to 32L for extra packing space when needed.
Padded sleeves are specified for a 16-inch laptop and a 10.9-inch tablet.
Removable packing cube can be taken out when its space is not needed.
Luggage pass-through strap attaches the backpack to rolling luggage.
Interior organization panel and quick-access pockets help separate smaller items.

Price

$125.95Save 26%

Reference price: ~~$169.95~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Expandable capacity accommodates a change from day-pack use to a larger travel load.
Device sleeves, interior organization and a removable packing cube offer several ways to separate work and travel items.
The luggage pass-through strap is useful when carrying the bag alongside rolling luggage.

Technical specifications

19 specifications

Identity and capacity
Brand	Thule
Model	Subterra
Listed capacity	26 liters
Expanded capacity	Expands from a 26L day pack to a 32L travel backpack for 20% more packable space
Color	Dark Slate
Size	One Size

Device storage and organization
Maximum compatible device size	16 inches
Tablet sleeve claim	Padded laptop sleeve fits a 16" laptop and padded tablet sleeve protects a 10.9'' tablet
Pockets	7
Compartments	4

Materials and protection
Material listed	Exterior: 65% Nylon, 35% Polyester; Interior: 100% Polyester
Water resistance listed	Water Resistant
Shell	Soft Shell
Care	Wipe clean with a damp cloth and mild soap, air dry

Dimensions and weight
Dimensions (D × W × H)	8.3"D x 8.3"W x 21"H
Weight listed	1.3 kg

Travel features
Removable packing cube	Removable packing cube helps you compress items to maximize packing space and can be removed when not needed
Luggage attachment	Luggage pass-through strap allows you to attach the bag to rolling luggage for effortless travel
Carry strap type	Nylon

What to know before buying

Listing details to confirm

The listing gives 26 liters as the base capacity and separately claims expansion to 32L. Water resistance is stated, but no waterproof rating or immersion protection is specified. The manufacturer contents list names a travel backpack, while the feature claims also describe a removable packing cube, so confirm the selected listing's package details if the cube is essential.

What’s in the box

Included

Travel backpack

Who is it for?

A good fit for

Travelers who want a laptop backpack that can expand for additional packing space.
People carrying a laptop up to 16 inches and a 10.9-inch tablet who value dedicated padded sleeves.
Users who want a removable packing cube and a pass-through strap for rolling luggage.

Less suited to

Buyers who need a stated waterproof rating or confirmed protection from immersion.
Anyone who needs more than the listed 32L expanded capacity.

Thule Subterra Travel Backpack 26L, Dark Slate · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 50 ratings

5 stars81%81%
4 stars9%9%
3 stars2%2%
2 stars2%2%
1 star6%6%

Aggregate ratings lean positive, with most ratings in the highest star category, but a smaller share are low ratings and the supplied evidence has no written feedback to explain either response. Treat the ratings as a limited satisfaction signal, not evidence about comfort, durability or how well the expansion and organizer work in use.

Frequently asked questions

How much can the backpack hold?

The listed base capacity is 26 liters. The listing says it expands to 32 liters for additional packable space.

What device sizes fit in its sleeves?

The listing specifies a padded laptop sleeve for a 16-inch laptop and a padded tablet sleeve for a 10.9-inch tablet.

Is the backpack waterproof?

It is described as water resistant. The listing does not provide a waterproof rating or claim immersion protection.

Is the packing cube included?

The feature description calls the cube removable, but the explicit contents list names only a travel backpack. Confirm package contents in the selected listing if the cube is important.