Cabin Zero Urban 42L vs. Hynes Eagle 38L Flight Approved Carry on Backpack

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

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

Feature by feature

Cabin Zero Urban 42LFeatureHynes Eagle 38L Flight Approved Carry on Backpack
Storage
N Compression Y
None Expanded Capacity None
1 Opening 1
N Passport Y
N Passthrough N
Carry
hideable Backpack hideable
N Hip Belt N
N Sternum Strap Y
Inside
N Laptop 16in
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Y Water Resistant Y
Material
Heavy Duty highly water resistant tarpaulin100% Polyester

Hynes Eagle 38L Flight Approved Carry on Backpack

Front facing view of the Hynes Eagle 38L Flight Approved Carry on Backpack
Capacity38 L
Weight0.8 kg
Dimensions50×33×20 cm
Airline fit91%
Price$40

Key differences between the Cabin Zero Urban 42L and Hynes Eagle 38L Flight Approved Carry on Backpack

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. 0 accept only the Cabin Zero Urban 42L, and 17 accept only the Hynes Eagle 38L Flight Approved Carry on Backpack.

Only the Hynes Eagle 38L Flight Approved Carry on Backpack 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, Sky Airlines.

Cabin Zero Urban 42L vs. Hynes Eagle 38L Flight Approved Carry on Backpack: which should you pack?

The Cabin Zero Urban 42L carries 4L more than the Hynes Eagle 38L Flight Approved Carry on Backpack (42L vs. 38L), while the Hynes Eagle 38L Flight Approved Carry on Backpack is the lighter pack at 0.8kg (vs. 1.4kg). For carry-on flexibility, the Hynes Eagle 38L Flight Approved Carry on Backpack fits 91% 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 Hynes Eagle 38L Flight Approved Carry on Backpack is the better call.