STM Saga vs. Pacsafe Metrosafe X Anti-Theft 25L Backpack

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

STM Saga

by Stm
Front facing view of the STM Saga
Capacity20 L
Weight0.51 kg
Dimensions44×29×15 cm
Airline fit95%
Price$60

Feature by feature

STM SagaFeaturePacsafe Metrosafe X Anti-Theft 25L Backpack
Storage
N Compression N
None Expanded Capacity None
3 Opening 4
N Passport Y
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
N Laptop 15in
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2 Water Bottle Holder 2
Y Water Resistant Y
Material
100% polyester750D Recycled polyester, 150D Recycled polyester

Pacsafe Metrosafe X Anti-Theft 25L Backpack

Front facing view of the Pacsafe Metrosafe X Anti-Theft 25L Backpack
Capacity25 L
Weight1 kg
Dimensions48×31×18 cm
Airline fit92%
Price$150

Key differences between the STM Saga and Pacsafe Metrosafe X Anti-Theft 25L Backpack

Both have: backpack straps, 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. 174 accept both. 6 accept only the STM Saga, and 0 accept only the Pacsafe Metrosafe X Anti-Theft 25L Backpack.

Only the STM Saga fits

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

STM Saga vs. Pacsafe Metrosafe X Anti-Theft 25L Backpack: which should you pack?

The Pacsafe Metrosafe X Anti-Theft 25L Backpack carries 5L more than the STM Saga (20L vs. 25L), while the STM Saga is the lighter pack at 0.51kg (vs. 1kg). For carry-on flexibility, the STM Saga fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Pacsafe Metrosafe X Anti-Theft 25L Backpack; if you want to travel lighter, the STM Saga is the better call.