Aer Pro Pack 20L vs. Day Owl Backpack Pro
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Aer Pro Pack 20L | Feature | Day Owl Backpack Pro |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top, back |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | N |
| Inside | ||
| 16in | Laptop | 16in |
| 4 | Main Compartments | 6 |
| 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 nylon | 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 Pro Pack 20L and Day Owl Backpack Pro
- Passport pocket: Top on the Aer Pro Pack 20L; Top, back on the Day Owl Backpack Pro.
- Sternum strap: Yes on the Aer Pro Pack 20L; No on the Day Owl Backpack Pro.
- Main compartments: 4 on the Aer Pro Pack 20L; 6 on the Day Owl Backpack Pro.
- Water bottle pockets: 2, side on the Aer Pro Pack 20L; 1, side on the Day Owl Backpack Pro.
Both have: luggage passthrough, backpack straps, 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. Day Owl Backpack Pro: which should you pack?
The Day Owl Backpack Pro carries 1L more than the Aer Pro Pack 20L (20L vs. 21L), while the Aer Pro Pack 20L is the lighter pack at 1.1kg (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 Day Owl Backpack Pro; if you want to travel lighter, the Aer Pro Pack 20L is the better call.