1 / 7Thule Chasm 40L Duffel Bag
Thule Chasm is a 40L duffel that converts to a backpack, with a wide-mouth opening and weather-resistant tarpaulin fabric. Its roomy main compartment and internal mesh pockets suit travel, sports and outdoor gear, while the listing’s waterproof claim should not be read as a guarantee for every exposure.
At a glance
- Wide-mouth opening provides access to a spacious main compartment for bulky gear.
- Converts from duffel to backpack, with straps that tuck away when not in use.
- Internal mesh pockets and an exterior stash pocket help separate smaller items.
- Manufacturer describes the tarpaulin fabric as waterproof and weather-resistant, and the bottom as padded.
Often bought together
Pros and cons
Pros
- 40-litre capacity and a wide opening make it practical for packing larger sports or travel items.
- Convertible carry lets you switch between duffel and backpack modes.
- Internal mesh pockets provide some separation for small items.
Technical specifications
18 specifications| Brand | Thule |
|---|---|
| Model | Chasm |
| Capacity | 40 liters |
|---|---|
| Recommended uses | Travel, Sports, Gym |
| Department | Unisex-Adult |
| Dimensions listed | 55.88 x 33.02 x 25.4 cm; 1.4 kg |
|---|---|
| Weight listed | 1400 g |
| Alternate dimensions listed | 32L x 25.5W x 56H centimetres |
| Material | Polyester |
|---|---|
| Water resistance listed | Waterproof |
| Colour | Deep Khaki |
| Closure | Zipper |
|---|---|
| Strap type | Convertible |
| Compartments | 1 |
| Handle type | Carrying Handle |
| Style | Utility/Outdoor |
| Country of origin | Indonesia |
|---|---|
| Manufacturer warranty description | Limited Lifetime |
What to know before buying
- The listing gives two dimension sets: 55.88 x 33.02 x 25.4 cm and 32L x 25.5W x 56H centimetres. It also describes the fabric as waterproof and weather-resistant, without specifying exposure limits. Confirm the measurements and protection level for your intended use.
Listing details to confirm
The listing gives different dimensions in separate entries, so the exact listed measurements are unclear.
What’s in the box
Included- Travel and duffel bag
Who is it for?
A good fit for
- Travellers and gym or sports users who want a 40-litre bag with duffel and backpack carry options.
- People packing bulky gear who value a wide opening and a few pockets for small items.
Less suited to
- Buyers who need independently confirmed waterproof performance for prolonged or demanding water exposure.
- Buyers who need precise dimensions to fit a specific storage space without first confirming the applicable measurements.

Customer reviews on Amazon
- 5 stars
84% 84% - 4 stars
7% 7% - 3 stars
4% 4% - 2 stars
2% 2% - 1 star
3% 3%
Customer feedback highlights perceived durability, useful size and capacity, material quality and appearance. Those impressions align with a 40-litre bag described as having a wide opening and convertible carry, but they do not establish waterproof performance. The supplied rating distribution is mostly five-star, with a smaller spread across lower star categories, so experiences are not uniformly positive.
Positive themes
- Customers describe the bag as robust and roomy, and report that its size works well for trips.
- Feedback also speaks positively about its design and material quality.
Frequently asked questions
Can the Thule Chasm be carried as a backpack?
The listing says it converts from a duffel to a backpack and that the backpack straps tuck away when not in use.
How much does the bag hold?
The listed capacity is 40 liters.
Is the bag waterproof?
The listing labels its water resistance as “Waterproof” and describes the tarpaulin fabric as waterproof and weather-resistant, but it does not state exposure limits. Confirm suitability for your conditions.
What are the bag’s dimensions?
Two different dimension sets appear in the listing. Confirm which measurements apply to the selected item before buying if size is critical.

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