Ortlieb Commuter Daypack City vs. Ryu Flex Pack 20L
Two carry-on travel backpacks, compared spec for spec.
Ortlieb Commuter Daypack City
| Capacity | 21 L |
| Weight | 0.75 kg |
| Dimensions | 50×30×15.5 cm |
| Airline fit | 92% |
| Price | $160 |
Feature by feature
| Ortlieb Commuter Daypack City | Feature | Ryu Flex Pack 20L |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |
| Material | |
| PS33 | 100% nylon with silicone coating and Polygiene® finish |
Key differences between the Ortlieb Commuter Daypack City and Ryu Flex Pack 20L
- Opening: Other on the Ortlieb Commuter Daypack City; Top zip on the Ryu Flex Pack 20L.
- Hip belt: Removable on the Ortlieb Commuter Daypack City; No on the Ryu Flex Pack 20L.
- Water bottle pockets: No on the Ortlieb Commuter Daypack City; 1 on the Ryu Flex Pack 20L.
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. 1 accept only the Ortlieb Commuter Daypack City, and 5 accept only the Ryu Flex Pack 20L.
Only the Ortlieb Commuter Daypack City fits
Air Niugini.
Only the Ryu Flex Pack 20L fits
American Eagle, easyJet, Ravn Alaska, Regional Express, Virgin Australia.
Ortlieb Commuter Daypack City vs. Ryu Flex Pack 20L: which should you pack?
The Ortlieb Commuter Daypack City carries 1L more than the Ryu Flex Pack 20L (21L vs. 20L), 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 City; if you want to travel lighter, the Ortlieb Commuter Daypack City is the better call.