1 / 7

Product guide

Thule Chasm 90L Convertible Duffel

Convertible: The Thule Chasm is a 90L duffel that converts to a backpack, with a wide-mouth opening and weather-resistant materials. Its large capacity and 4.6-pound listed weight suit gear-heavy trips, while the listed dimensions and substantial volume are worth considering when packing for flights.

At a glance

Converts between duffel and backpack carry, with straps that tuck away when not in use.
Oversized wide-mouth opening gives access to the main packing area.
Internal mesh pockets organize smaller items, with an exterior stash pocket for quick access.
Manufacturer describes the tarpaulin fabric as durable and waterproof. The material details also list recycled polyester and PFC-free TPE.

Price

$148.95Save 26%

Reference price: ~~$199.95~~

Price checked: Nov 14, 2026

View offer

Often bought together

Thule Compression Packing Cube Set, Includes Size Small & Medium, Semitransparent Fabric, Easy to Pack

$38.95

Thule Chasm Gear Cube

$46.95

Pros and cons

Pros

Convertible carry gives options when moving between car, airport and walking routes.
90-liter capacity and wide opening accommodate bulky trip gear and make contents easier to reach.
Internal mesh pockets and an exterior stash pocket provide separate places for small essentials.
Manufacturer says the exterior and interior fabrics, webbing and mesh use recycled materials.

Cons

At 4.6 pounds before packing, the bag adds noticeable weight when carrying a full load.

Technical specifications

16 specifications

Identity
Brand	Thule
Model	Chasm

Capacity and dimensions
Capacity	90 liters
Size	90L
Dimensions (L × W × H)	20"L x 14"W x 8"H
Weight listed	4.6 pounds

Materials and protection
Material	Recycled Polyester
Water resistance listed	Waterproof
Membrane/laminate	[membrane/laminate] PFC-free TPE

Design and use
Closure	Zipper
Strap type	Convertible
Number of compartments	3
Recommended use	Travel
Handle type	Web Handle
Color	Pond Gray
Style	Chasm Sport Duffel

What to know before buying

Listing details to confirm

The listing describes the bag as weather-resistant and waterproof, while the material fields identify recycled polyester and PFC-free TPE. These are differing levels of water-protection detail, not a stated immersion rating. Customer feedback describes strong water resistance, but does not establish a specific protection standard.

What’s in the box

Travel bagIncluded
Duffel bagIncluded
Carry caseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Travelers packing bulky gear who want a 90-liter bag with both duffel and backpack carry options.
Campers and outdoor travelers who value a wide opening, weather-resistant materials and pockets for small items.

Less suited to

Travelers seeking a lightweight bag for carrying a full load, given the listed 4.6-pound empty weight.
Buyers who need a compact bag or rely on a stated carry-on size limit. The listing does not establish flight-specific compliance.

Thule Chasm 90L Convertible Duffel · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 584 ratings

5 stars82%82%
4 stars8%8%
3 stars4%4%
2 stars2%2%
1 star4%4%

Customer feedback highlights perceived quality, capacity for extended trips, versatility across flights and weekend travel, and appreciation for the removable backpack straps and water resistance. The listing’s 90-liter capacity and convertible carry align with those reported uses. Feedback also mentions suitability for 33-pound limits, but that does not establish a universal airline or carry-on allowance. The rating distribution is mostly five-star but includes lower ratings, and it does not identify their reasons.

Positive themes

Customers report ample capacity for extended trips and appreciate the bag’s versatility.
Feedback describes the backpack strap as easy to attach and detach and praises water resistance and pocket access.
Customers also report positive impressions of quality and appearance.

Frequently asked questions

Can the Thule Chasm be carried as a backpack?

Yes. The manufacturer 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 listing gives its capacity as 90 liters and its size as 90L.

Is the bag waterproof?

The listing labels its water resistance as waterproof and describes waterproof tarpaulin fabric, but also uses the term weather-resistant. It does not specify an immersion rating.

What pockets does it have?

The manufacturer describes internal mesh pockets and an exterior stash pocket. The listing also gives three compartments.