Gregory Terros 28 vs Osprey Arcane XL Day
The Gregory Terros 28 is 28L and 0.85kg1.9lb; the Osprey Arcane XL Day is 28L and 0.81kg1.8lb. The Osprey Arcane XL Day is 0.04kg0.1lb lighter. The Gregory Terros 28 fits the carry-on limit of 1 of 36 major airlines and the Osprey Arcane XL Day fits 1; under the seat, 0 and 0 of 26.
| Spec | Gregory Terros 28 | Osprey Arcane XL Day |
|---|---|---|
| Price | n/a | $140 |
| Volume | 28L | 28L |
| Weight | 0.85kg1.9lb | 0.81kg1.8lbBest |
| Carry-on compliance | 3% | 3% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 52×31×26cm20.5×12×10in | 47×31.5×30cm18.5×12.5×12in |
| Laptop | 16" | 16" |
| Compartments | 2 | n/a |
| Bottle pockets | 2 | 1 |
| Opening | large zippered main compartment plus front zippered compartment | Panel access, J-zip large front panel access to main compartment |
| Warranty | 50 years | Lifetime |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | Yes | No |
| Frame sheet | No | No |
| Water-resistant | No | 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 | 500D x 600D and 900D 100% recycled polyester with PFAS-free C0 DWR, 135D recycled polyester lining | bluesign approved 100% recycled 480D polyester with PFAS-free DWR, 200D recycled polyester lining, 540D recycled polyester bottom |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
Both bags pass and fail the same airline size limits.
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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.