Ryu Flex Pack 20L vs. STM Grace
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Ryu Flex Pack 20L | Feature | STM Grace |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | N |
| 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 | 100% polyester |
Key differences between the Ryu Flex Pack 20L and STM Grace
- Sternum strap: Removable on the Ryu Flex Pack 20L; No on the STM Grace.
- Water bottle pockets: 1 on the Ryu Flex Pack 20L; No on the STM Grace.
Both have: 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. 177 accept both. 0 accept only the Ryu Flex Pack 20L, and 3 accept only the STM Grace.
Only the STM Grace fits
Air Niugini, Air Tahiti, Gulf Air.
Ryu Flex Pack 20L vs. STM Grace: which should you pack?
The Ryu Flex Pack 20L carries the same capacity as the STM Grace (20L vs. 20L), and the two are closely matched on weight. For carry-on flexibility, the STM Grace fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Ryu Flex Pack 20L; if you want to travel lighter, the STM Grace is the better call.