Aer Duffel Pack 3 X-Pac vs. Aer City Pack Pro
Two carry-on travel backpacks, compared spec for spec.
Aer Duffel Pack 3 X-Pac
| Capacity | 21 L |
| Weight | 1.3 kg |
| Dimensions | 52×30×20 cm |
| Airline fit | 88% |
| Price | $210 |
Feature by feature
| Aer Duffel Pack 3 X-Pac | Feature | Aer City Pack Pro |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 1 |
| top, side | Passport | top, side |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 16in |
| 5 | 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 | |
| VX-42 X-Pac (also in 1680D Cordura) | 1680D Cordura® ballistic nylon exterior, or xPac |
Key differences between the Aer Duffel Pack 3 X-Pac and Aer City Pack Pro
- Opening: Other on the Aer Duffel Pack 3 X-Pac; Clamshell on the Aer City Pack Pro.
Both have: passport pocket, luggage passthrough, backpack straps, sternum strap, 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. 167 accept both. 0 accept only the Aer Duffel Pack 3 X-Pac, and 10 accept only the Aer City Pack Pro.
Only the Aer City Pack Pro fits
American Eagle, Belavia, easyJet, Etihad Airways, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Virgin Australia.
Aer Duffel Pack 3 X-Pac vs. Aer City Pack Pro: which should you pack?
The Aer City Pack Pro carries 3L more than the Aer Duffel Pack 3 X-Pac (21L vs. 24L), while the Aer City Pack Pro is the lighter pack at 1.2kg (vs. 1.3kg). For carry-on flexibility, the Aer City Pack Pro fits 94% 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 City Pack Pro is the better call.