Pacsafe Metrosafe X Anti-Theft 20L Backpack vs. Unbox Therapy X Pacsafe 25L Anti-Theft Backpack

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

Pacsafe Metrosafe X Anti-Theft 20L Backpack

Front facing view of the Pacsafe Metrosafe X Anti-Theft 20L Backpack
Capacity20 L
Weight0.73 kg
Dimensions45×30×13 cm
Airline fit95%
Price$140

Feature by feature

Pacsafe Metrosafe X Anti-Theft 20L BackpackFeatureUnbox Therapy X Pacsafe 25L Anti-Theft Backpack
Storage
N Compression N
None Expanded Capacity None
4 Opening 4
Y Passport Y
N 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
750D Recycled polyester, 150D Recycled polyester 1000D 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 Pacsafe Metrosafe X Anti-Theft 20L 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. 174 accept both. 6 accept only the Pacsafe Metrosafe X Anti-Theft 20L Backpack, and 0 accept only the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack.

Only the Pacsafe Metrosafe X Anti-Theft 20L Backpack fits

Air Niugini, Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.

Pacsafe Metrosafe X Anti-Theft 20L Backpack vs. Unbox Therapy X Pacsafe 25L Anti-Theft Backpack: which should you pack?

The Unbox Therapy X Pacsafe 25L Anti-Theft Backpack carries 5L more than the Pacsafe Metrosafe X Anti-Theft 20L Backpack (20L vs. 25L), while the Pacsafe Metrosafe X Anti-Theft 20L Backpack is the lighter pack at 0.73kg (vs. 1.05kg). For carry-on flexibility, the Pacsafe Metrosafe X Anti-Theft 20L Backpack fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Unbox Therapy X Pacsafe 25L Anti-Theft Backpack; if you want to travel lighter, the Pacsafe Metrosafe X Anti-Theft 20L Backpack is the better call.