Ryu Flex Pack 20L vs. Ortlieb Commuter Daypack Urban Line
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Ryu Flex Pack 20L | Feature | Ortlieb Commuter Daypack Urban Line |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 2 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| 100% nylon with silicone coating and Polygiene® finish | PS55C |
Ortlieb Commuter Daypack Urban Line
| Capacity | 21 L |
| Weight | 0.74 kg |
| Dimensions | 50×30×15.5 cm |
| Airline fit | 92% |
| Price | $200 |
Key differences between the Ryu Flex Pack 20L and Ortlieb Commuter Daypack Urban Line
- Opening: Top zip on the Ryu Flex Pack 20L; Rolltop on the Ortlieb Commuter Daypack Urban Line.
- Hip belt: No on the Ryu Flex Pack 20L; Removable on the Ortlieb Commuter Daypack Urban Line.
- Water bottle pockets: 1 on the Ryu Flex Pack 20L; No on the Ortlieb Commuter Daypack Urban Line.
Both have: 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. 172 accept both. 5 accept only the Ryu Flex Pack 20L, and 1 accept only the Ortlieb Commuter Daypack Urban Line.
Only the Ryu Flex Pack 20L fits
American Eagle, easyJet, Ravn Alaska, Regional Express, Virgin Australia.
Only the Ortlieb Commuter Daypack Urban Line fits
Air Niugini.
Ryu Flex Pack 20L vs. Ortlieb Commuter Daypack Urban Line: which should you pack?
The Ortlieb Commuter Daypack Urban Line carries 1L more than the Ryu Flex Pack 20L (20L vs. 21L), and the two are closely matched on weight. For carry-on flexibility, the Ryu Flex Pack 20L fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Ortlieb Commuter Daypack Urban Line; if you want to travel lighter, the Ortlieb Commuter Daypack Urban Line is the better call.