Briggs & Riley Medium Cargo Backpack vs. Unbox Therapy X Pacsafe 25L Anti-Theft Backpack

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

Briggs & Riley Medium Cargo Backpack

Front facing view of the Briggs & Riley Medium Cargo Backpack
Capacity27.3 L
Weight1.2 kg
Dimensions45.5×34.5×20.5 cm
Airline fit74%
Price$329

Feature by feature

Briggs & Riley Medium Cargo BackpackFeatureUnbox Therapy X Pacsafe 25L Anti-Theft Backpack
Storage
N Compression N
None Expanded Capacity None
4 Opening 4
Y Passport Y
Y Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
15in Laptop 15in
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1 Water Bottle Holder 2
Y Water Resistant Y
Material
1600D ballistic nylon outer fabric1000D Polina with wax coating, 150D Recycled polyester

Unbox Therapy X Pacsafe 25L Anti-Theft Backpack

Front facing view of the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack
Capacity25 L
Weight1.05 kg
Dimensions47×32×16 cm
Airline fit92%
Price$180

Key differences between the Briggs & Riley Medium Cargo Backpack and Unbox Therapy X Pacsafe 25L Anti-Theft Backpack

Both have: passport pocket, backpack straps, laptop sleeve, built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 137 accept both. 2 accept only the Briggs & Riley Medium Cargo Backpack, and 37 accept only the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack.

Only the Briggs & Riley Medium Cargo Backpack fits

American Eagle, Ravn Alaska.

Only the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, Cayman Airways, China Eastern, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Regional Express, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, Xiamen.

Briggs & Riley Medium Cargo Backpack vs. Unbox Therapy X Pacsafe 25L Anti-Theft Backpack: which should you pack?

The Briggs & Riley Medium Cargo Backpack carries 2.3000000000000007L more than the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack (27.3L vs. 25L), while the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack is the lighter pack at 1.05kg (vs. 1.2kg). For carry-on flexibility, the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Briggs & Riley Medium Cargo Backpack; if you want to travel lighter, the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack is the better call.