Aer Pro Pack 20L vs. Aer Pro Slim Pack

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

Aer Pro Pack 20L

by Aer
Front facing view of the Aer Pro Pack 20L
Capacity20 L
Weight1.1 kg
Dimensions45×31×14 cm
Airline fit95%
Price$180

Feature by feature

Aer Pro Pack 20LFeatureAer Pro Slim Pack
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
top Passport front
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap Y
Inside
16in Laptop 16in
4 Main Compartments 3
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 1, side
Y Water Resistant Y
Material
840D CORDURA re/cor recycled nylon840D CORDURA re/cor recycled nylon

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

Key differences between the Aer Pro Pack 20L and Aer Pro Slim Pack

Both have: luggage passthrough, backpack straps, sternum strap, 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. 179 accept both. Every airline that takes one takes the other.

Aer Pro Pack 20L vs. Aer Pro Slim Pack: which should you pack?

The Aer Pro Pack 20L carries 7L more than the Aer Pro Slim Pack (20L vs. 13L), while the Aer Pro Slim Pack is the lighter pack at 0.9kg (vs. 1.1kg). For carry-on flexibility, the Aer Pro Pack 20L fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Pro Pack 20L; if you want to travel lighter, the Aer Pro Slim Pack is the better call.