Aer Travel Pack 3 Small vs DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped'
The Aer Travel Pack 3 Small is 28L and 1.72kg3.8lb; the DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' is 28L and 1.7kg3.7lb. The DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' is 0.02kg0lb lighter. The Aer Travel Pack 3 Small costs $70 less. The Aer Travel Pack 3 Small fits the carry-on limit of 36 of 36 major airlines and the DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' fits 36; under the seat, 0 and 0 of 26.
| Spec | Aer Travel Pack 3 Small | DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' |
|---|---|---|
| Price | $229Best | $299 |
| Volume | 28L | 28L |
| Expands to | n/a | 40L |
| Weight | 1.72kg3.8lb | 1.7kg3.7lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 48×33×19cm19×13×7.5in | 47×34.3×16.5cm18.5×13.5×6.5in |
| Laptop | 16" | 16" |
| Bottle pockets | 1 | n/a |
| Opening | Clamshell, Lay-flat main compartment | Roll-top, roll-top main compartment with AustriAlpin COBRA buckle |
| Warranty | Lifetime | No fixed term |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | Yes | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | Yes |
| Hip belt | Insert sold separately | No |
| Sternum strap | No | No |
| Load lifters | Yes | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | 1680D CORDURA ballistic nylon exterior (bluesign approved), woven lining (bluesign approved), YKK zippers, Duraflex hardware | 1050D MIL-SPEC ballistic nylon exterior, ECOPAK EPX 200D recycled polyester lining, YKK AquaGuard zippers |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
Both bags pass and fail the same airline size limits.
Add more bags to this comparison
Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.