Aer Pro Slim Pack vs. Aer City Pack Pro

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

Aer Pro Slim Pack

by Aer
Front facing view of the Aer Pro Slim Pack
Capacity13 L
Weight0.9 kg
Dimensions43×31×10 cm
Airline fit95%
Price$140

Feature by feature

Aer Pro Slim PackFeatureAer City Pack Pro
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
front Passport top, side
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap removable
Inside
16in Laptop 16in
3 Main Compartments 5
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 1, side
Y Water Resistant Y
Material
840D CORDURA re/cor recycled nylon1680D Cordura® ballistic nylon exterior, or xPac

Aer City Pack Pro

by Aer
Front facing view of the Aer City Pack Pro
Capacity24 L
Weight1.2 kg
Dimensions46×31×19 cm
Airline fit94%
Price$210

Key differences between the Aer Pro Slim Pack and Aer City Pack Pro

Both have: luggage passthrough, backpack straps, laptop sleeve, 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. 177 accept both. 2 accept only the Aer Pro Slim Pack, and 0 accept only the Aer City Pack Pro.

Only the Aer Pro Slim Pack fits

Air Tahiti, Gulf Air.

Aer Pro Slim Pack vs. Aer City Pack Pro: which should you pack?

The Aer City Pack Pro carries 11L more than the Aer Pro Slim Pack (13L vs. 24L), while the Aer Pro Slim Pack is the lighter pack at 0.9kg (vs. 1.2kg). For carry-on flexibility, the Aer Pro Slim Pack fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer City Pack Pro; if you want to travel lighter, the Aer Pro Slim Pack is the better call.