Patagonia Tres Backpack 25L vs. Cabin Zero Urban 42L

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

Patagonia Tres Backpack 25L

Front facing view of the Patagonia Tres Backpack 25L
Capacity25 L
Weight0.9 kg
Dimensions48×31×17 cm
Airline fit92%
Price$129

Feature by feature

Patagonia Tres Backpack 25LFeatureCabin Zero Urban 42L
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
N Passport N
Y Passthrough N
Carry
hideable Backpack hideable
N Hip Belt N
Y Sternum Strap N
Inside
15in Laptop N
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Y Water Resistant Y
Material
630-denier 100% nylon, 200-denier 100% recycled polyesterHeavy Duty highly water resistant tarpaulin

Cabin Zero Urban 42L

Front facing view of the Cabin Zero Urban 42L
Capacity42 L
Weight1.4 kg
Dimensions51×36×15 cm
Airline fit82%
Price$155

Key differences between the Patagonia Tres Backpack 25L and Cabin Zero Urban 42L

Both have: backpack straps, 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. 155 accept both. 19 accept only the Patagonia Tres Backpack 25L, and 0 accept only the Cabin Zero Urban 42L.

Only the Patagonia Tres Backpack 25L fits

Aerolineas Argentinas, Air France, Air India, Air Mauritius, Belavia, Boliviana de Aviacion, Cayman Airways, Etihad Airways, flybe, Indigo, InselAir, Jet Airways, Kenya Airways, KLM, LATAM , Qatar Airways, Regional Express, Sky Airlines, Virgin Australia.

Patagonia Tres Backpack 25L vs. Cabin Zero Urban 42L: which should you pack?

The Cabin Zero Urban 42L carries 17L more than the Patagonia Tres Backpack 25L (25L vs. 42L), while the Patagonia Tres Backpack 25L is the lighter pack at 0.9kg (vs. 1.4kg). For carry-on flexibility, the Patagonia Tres Backpack 25L fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cabin Zero Urban 42L; if you want to travel lighter, the Patagonia Tres Backpack 25L is the better call.