Why compare these options?
Backpacks of comparable carrying scale, selected for a difference of 408.2 g in published empty weight.
- The listed capacities are 26 L and 26 L. Which can take your complete named load with the bag closed? Capacity ratings alone cannot settle this.
- The published empty weights are 907.2 g and 1315.4 g. Do those figures include the same straps or accessories? Check the source scope before treating the difference as carried weight.
- If carrying a laptop, check its actual sleeve and opening dimensions rather than relying on screen size or a laptop-storage label.
Thule Thule Chasm backpack 26L
Thule Thule Subterra travel backpack 26LManufacturer model photographs; pictured colour and size are not independently confirmed. No hands-on winner or rating is assigned.
| Field | Thule Chasm backpack 26L | Thule Subterra travel backpack 26L |
|---|---|---|
| Published empty weight | 907.2 g | 1315.4 g |
| Outside dimensions | 21.1 × 30 × 53.3 cm · length / width / height | 33 × 24.4 × 50.5 cm · length / width / height |
| Published capacity | 26 L | 26 L |
| Shoulder strap | Unknown | Unknown |
| Pockets / storage | Zipped pocket described; Slip storage described; Bottle storage described; Padded sleeve described; Padded laptop sleeve described; Phone storage described; Zippered pocket described; Mesh pockets described | Zipped pocket described; Bottle storage described; Padded sleeve described; Padded laptop sleeve described; Tablet storage described; Water bottle pocket described; Compartment storage described; Zippered pocket described |
| Recorded price | USD 159.95 · US online store | USD 169.95 · US online store |
| Specification option | Pond gray | Vetiver gray |
What changes between the published specifications
The published empty-weight values differ by 408.2 g. This compares manufacturer figures; accessory inclusion and weighing tolerance may differ.
Listed capacity: 26 L versus 26 L. Volume ratings do not establish a pocket opening or the shape of an object that can fit.
Outside dimensions stay in the order used by each manufacturer. Match labelled axes where supplied; unlabelled axes do not support a height-to-height claim.
With an illustrative 1 kg load, starting totals would be 1,907.2 g and 2,315.4 g before any accessories excluded from the published weights. This is arithmetic, not a comfort or packed-load test.
Questions these numbers cannot settle
- Will your phone and passport fit together with the bag fully closed?
- Can you reach the needed pocket while wearing the bag?
- Does the strap adjust comfortably over your clothing and body measurements?
- How does the particular material perform in your use?
Use the two fact sheets for model details, then check those questions with the actual bag or directly with its manufacturer.
Open the comparison toolOfficial sources
- Thule Chasm backpack 26L ↗Checked 2026-10-15
- Thule Subterra travel backpack 26L ↗Checked 2026-10-15