STM Saga vs. Uniqlo 3Way Bag
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Saga | Feature | Uniqlo 3Way Bag |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 3 | Opening | 0 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | N |
| Inside | ||
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | Polyester |
Uniqlo 3Way Bag
| Capacity | 4 L |
| Weight | 1 kg |
| Dimensions | 17.7×12.2×4.7 cm |
| Airline fit | 100% |
| Price | $40 |
Key differences between the STM Saga and Uniqlo 3Way Bag
- Opening: Top flap on the STM Saga; Other on the Uniqlo 3Way Bag.
- Water bottle pockets: 2 on the STM Saga; No on the Uniqlo 3Way Bag.
Both have: backpack straps, 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. 180 accept both. 0 accept only the STM Saga, and 9 accept only the Uniqlo 3Way Bag.
Only the Uniqlo 3Way Bag fits
Great Lakes Airlines, LC Perú, Linea Aerea Amaszonas, Lion Air Group, Spring Airlines, Tianjin Airlines (E145), VivaColombia, Volaris, Wizz Air.
STM Saga vs. Uniqlo 3Way Bag: which should you pack?
The STM Saga carries 16L more than the Uniqlo 3Way Bag (20L vs. 4L), while the STM Saga is the lighter pack at 0.51kg (vs. 1kg). For carry-on flexibility, the Uniqlo 3Way Bag fits 100% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Saga; if you want to travel lighter, the STM Saga is the better call.