Aer City Pack Pro vs. Day Owl Backpack Pro
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Aer City Pack Pro | Feature | Day Owl Backpack Pro |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top, side | Passport | top, back |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | N |
| Inside | ||
| 16in | Laptop | 16in |
| 5 | Main Compartments | 6 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| 1680D Cordura® ballistic nylon exterior, or xPac | waxed canvas |
Day Owl Backpack Pro
| Capacity | 21 L |
| Weight | 1.1 kg |
| Dimensions | 43×31×13 cm |
| Airline fit | 95% |
| Price | $155 |
Key differences between the Aer City Pack Pro and Day Owl Backpack Pro
- Passport pocket: Top, side on the Aer City Pack Pro; Top, back on the Day Owl Backpack Pro.
- Sternum strap: Removable on the Aer City Pack Pro; No on the Day Owl Backpack Pro.
- Main compartments: 5 on the Aer City Pack Pro; 6 on the Day Owl Backpack 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. 0 accept only the Aer City Pack Pro, and 2 accept only the Day Owl Backpack Pro.
Only the Day Owl Backpack Pro fits
Air Tahiti, Gulf Air.
Aer City Pack Pro vs. Day Owl Backpack Pro: which should you pack?
The Aer City Pack Pro carries 3L more than the Day Owl Backpack Pro (24L vs. 21L), while the Day Owl Backpack Pro is the lighter pack at 1.1kg (vs. 1.2kg). For carry-on flexibility, the Day Owl Backpack Pro 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 Day Owl Backpack Pro is the better call.