STM Kings vs. ILE Radius
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Kings | Feature | ILE Radius |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| N | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | removable |
| Inside | ||
| 15in | Laptop | 16in |
| 2 | Main Compartments | 2 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | 1000D Cordura or xpac |
Key differences between the STM Kings and ILE Radius
- Passport pocket: No on the STM Kings; Front on the ILE Radius.
- Sternum strap: No on the STM Kings; Removable on the ILE Radius.
- Laptop sleeve: 15in on the STM Kings; 16in on the ILE Radius.
- Water bottle pockets: 2 on the STM Kings; 2, side on the ILE Radius.
Both have: backpack straps, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 175 accept both. 0 accept only the STM Kings, and 1 accept only the ILE Radius.
Only the ILE Radius fits
Great Lakes Airlines.
STM Kings vs. ILE Radius: which should you pack?
The STM Kings carries 1L more than the ILE Radius (22L vs. 21L), and the two are closely matched on weight. For carry-on flexibility, the STM Kings fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Kings; if you want to travel lighter, the STM Kings is the better call.