Why compare these options?
Duffels of comparable carrying scale, selected for a difference of 506.1 g in published empty weight and 15.0 L in published capacity.
- The listed capacities are 40 L and 55 L. Which can take your complete named load with the bag closed? Capacity ratings alone cannot settle this.
- The published empty weights are 1406.1 g and 900 g. Do those figures include the same straps or accessories? Check the source scope before treating the difference as carried weight.
- Check the strap measurement type and usable pocket openings for your clothing and objects; neither wearing comfort nor combined loading has been tested here.
Thule Thule Chasm 40L duffel
Bellroy Venture Duffel 55LManufacturer model photographs; pictured colour and size are not independently confirmed. No hands-on winner or rating is assigned.
| Field | Thule Chasm 40L duffel | Bellroy Venture Duffel 55L |
|---|---|---|
| Published empty weight | 1406.1 g | 900 g |
| Outside dimensions | 55.9 × 33 × 25.4 cm · length / width / height | 37 × 60 × 32 cm · height / length / depth |
| Published capacity | 40 L | 55 L |
| Shoulder strap | Unknown | Unknown |
| Pockets / storage | Mesh pockets described; Zippered mesh pocket described | AirTag storage described |
| Recorded price | USD 159.95 · US online store | TWD 8,790.00 · TWD displayed for Bellroy.com API channel |
| Specification option | Darkest blue | 55 L / Black / Baida Nylon |
What changes between the published specifications
The published empty-weight values differ by 506.1 g. This compares manufacturer figures; accessory inclusion and weighing tolerance may differ.
Listed capacity: 40 L versus 55 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 2,406.1 g and 1,900 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 40L duffel ↗Checked 2026-10-15
- Bellroy Venture Duffel 55L ↗Checked 2026-10-15