Jansport Double Break vs. Karrimor Covert 30L Backpack

Two carry-on travel backpacks, compared spec for spec.

Jansport Double Break

Front facing view of the Jansport Double Break
Capacity27 L
Weight0.4 kg
Dimensions42×31×14 cm
Airline fit95%
Price$45

Feature by feature

Jansport Double BreakFeatureKarrimor Covert 30L Backpack
Storage
N Compression N
None Expanded Capacity None
4 Opening 3
N Passport Y
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap Y
Inside
15in Laptop 15in
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1 Water Bottle Holder 1
Y Water Resistant Y
Material
400D Nylon Packcloth600D ripstop polyester

Karrimor Covert 30L Backpack

Front facing view of the Karrimor Covert 30L Backpack
Capacity30 L
Weight2 kg
Dimensions49×29×14.5 cm
Airline fit92%

Key differences between the Jansport Double Break and Karrimor Covert 30L Backpack

Both have: backpack straps, laptop sleeve, built-in organizer, water bottle pockets, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 172 accept both. 7 accept only the Jansport Double Break, and 1 accept only the Karrimor Covert 30L Backpack.

Only the Jansport Double Break fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska, Regional Express, Virgin Australia.

Only the Karrimor Covert 30L Backpack fits

Air Niugini.

Jansport Double Break vs. Karrimor Covert 30L Backpack: which should you pack?

The Karrimor Covert 30L Backpack carries 3L more than the Jansport Double Break (27L vs. 30L), while the Jansport Double Break is the lighter pack at 0.4kg (vs. 2kg). For carry-on flexibility, the Jansport Double Break fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Karrimor Covert 30L Backpack; if you want to travel lighter, the Jansport Double Break is the better call.