Pacsafe Metrosafe X Anti-Theft 20L Backpack vs. Mountainsmith Divide

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 BackpackFeatureMountainsmith Divide
Storage
N Compression N
None Expanded Capacity None
4 Opening 4
Y Passport front
N Passthrough N
Carry
Y Backpack Y
N Hip Belt removable
N Sternum Strap N
Inside
15in Laptop 15in
1 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1 Water Bottle Holder 2, side
Y Water Resistant Y
Material
750D Recycled polyester, 150D Recycled polyester TC 20s 2x2 Waxed Canvas PU 210d Recycled Nylon SD Oxford PU

Mountainsmith Divide

Front facing view of the Mountainsmith Divide
Capacity16 L
Weight0.7 kg
Dimensions46×28×14 cm
Airline fit95%
Price$90

Key differences between the Pacsafe Metrosafe X Anti-Theft 20L Backpack and Mountainsmith Divide

Both have: 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. 178 accept both. 2 accept only the Pacsafe Metrosafe X Anti-Theft 20L Backpack, and 1 accept only the Mountainsmith Divide.

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

Air Tahiti, Gulf Air.

Only the Mountainsmith Divide fits

Great Lakes Airlines.

Pacsafe Metrosafe X Anti-Theft 20L Backpack vs. Mountainsmith Divide: which should you pack?

The Pacsafe Metrosafe X Anti-Theft 20L Backpack carries 4L more than the Mountainsmith Divide (20L vs. 16L), while the Mountainsmith Divide is the lighter pack at 0.7kg (vs. 0.73kg). 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 Pacsafe Metrosafe X Anti-Theft 20L Backpack; if you want to travel lighter, the Mountainsmith Divide is the better call.