Boundary Supply -- Prima System Modular Travel Backpack vs. Lo & Sons Hanover 2 Deluxe

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

Boundary Supply -- Prima System Modular Travel Backpack

Front facing view of the Boundary Supply -- Prima System Modular Travel Backpack
Capacity22 L
Weight1.4 kg
Dimensions49×28×13 cm
Airline fit92%
Price$268

Feature by feature

Boundary Supply -- Prima System Modular Travel BackpackFeatureLo & Sons Hanover 2 Deluxe
Storage
Y Compression N
30L Expanded Capacity None
0 Opening 4
Y Passport Y
Y Passthrough Y
Carry
Y Backpack Y
removable Hip Belt N
removable Sternum Strap N
Inside
17in 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
Nywool, Nylon, Kodra Nylon600D Recycled Poly

Lo & Sons Hanover 2 Deluxe

Front facing view of the Lo & Sons Hanover 2 Deluxe
Capacity25.8 L
Weight1 kg
Dimensions44.5×30.5×19.1 cm
Airline fit95%
Price$248

Key differences between the Boundary Supply -- Prima System Modular Travel Backpack and Lo & Sons Hanover 2 Deluxe

Both have: passport pocket, luggage passthrough, 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. 172 accept both. 2 accept only the Boundary Supply -- Prima System Modular Travel Backpack, and 7 accept only the Lo & Sons Hanover 2 Deluxe.

Only the Boundary Supply -- Prima System Modular Travel Backpack fits

Air Niugini, Great Lakes Airlines.

Only the Lo & Sons Hanover 2 Deluxe fits

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

Boundary Supply -- Prima System Modular Travel Backpack vs. Lo & Sons Hanover 2 Deluxe: which should you pack?

The Lo & Sons Hanover 2 Deluxe carries 3.8000000000000007L more than the Boundary Supply -- Prima System Modular Travel Backpack (22L vs. 25.8L), while the Lo & Sons Hanover 2 Deluxe is the lighter pack at 1kg (vs. 1.4kg). For carry-on flexibility, the Lo & Sons Hanover 2 Deluxe fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Lo & Sons Hanover 2 Deluxe; if you want to travel lighter, the Lo & Sons Hanover 2 Deluxe is the better call.