Thule Aion Carry-on Spinner 35L vs Thule Subterra 2 Carry-on Spinner 35L
The Thule Aion Carry-on Spinner 35L is 35L and 3.27kg7.2lb; the Thule Subterra 2 Carry-on Spinner 35L is 35L and 3.22kg7.1lb. The Thule Subterra 2 Carry-on Spinner 35L is 0.05kg0.1lb lighter. The Thule Aion Carry-on Spinner 35L costs $50 less. The Thule Aion Carry-on Spinner 35L fits the carry-on limit of 5 of 36 major airlines and the Thule Subterra 2 Carry-on Spinner 35L fits 14; under the seat, 0 and 0 of 26.
| Spec | Thule Aion Carry-on Spinner 35L | Thule Subterra 2 Carry-on Spinner 35L |
|---|---|---|
| Price | $349.95Best | $399.95 |
| Volume | 35L | 35L |
| Weight | 3.27kg7.2lb | 3.22kg7.1lbBest |
| Carry-on compliance | 14% | 39%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 55.1×35.1×23.1cm21.5×14×9in | 55.1×35.6×22.9cm21.5×14×9in |
| Warranty | Lifetime | Lifetime |
| Organizer | No | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | Waxed P600 polyester canvas | Nylon, polyester |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Thule Aion Carry-on Spinner 35L | Thule Subterra 2 Carry-on Spinner 35L |
|---|---|---|---|
| AirAsia | Carry-on | Too big | Fits |
| Alaska Airlines | Carry-on | Too big | Fits |
| American Airlines | Carry-on | Too big | Fits |
| Cebu Pacific | Carry-on | Too big | Fits |
| Delta Air Lines | Carry-on | Too big | Fits |
| JetBlue Airways | Carry-on | Too big | Fits |
| Qantas | Carry-on | Too big | Fits |
| Vietjet Air | Carry-on | Too big | Fits |
| WestJet | Carry-on | Too big | Fits |
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Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.