Ryu Flex Pack 20L vs. Deuter UP Sydney
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Ryu Flex Pack 20L | Feature | Deuter UP Sydney |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 3 |
| 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 | 1 |
| Y | Water Resistant | Y |
| Material | |
| 100% nylon with silicone coating and Polygiene® finish | 300D PES Ripstop, 500D rPES |
Deuter UP Sydney
| Capacity | 22 L |
| Weight | 0.88 kg |
| Dimensions | 50×30×16 cm |
| Airline fit | 92% |
| Price | $150 |
Key differences between the Ryu Flex Pack 20L and Deuter UP Sydney
- Opening: Top zip on the Ryu Flex Pack 20L; Top flap on the Deuter UP Sydney.
- Hip belt: No on the Ryu Flex Pack 20L; Removable on the Deuter UP Sydney.
Both have: 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. 172 accept both. 5 accept only the Ryu Flex Pack 20L, and 1 accept only the Deuter UP Sydney.
Only the Ryu Flex Pack 20L fits
American Eagle, easyJet, Ravn Alaska, Regional Express, Virgin Australia.
Only the Deuter UP Sydney fits
Air Niugini.
Ryu Flex Pack 20L vs. Deuter UP Sydney: which should you pack?
The Deuter UP Sydney carries 2L more than the Ryu Flex Pack 20L (20L vs. 22L), 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 Deuter UP Sydney; if you want to travel lighter, the Deuter UP Sydney is the better call.