DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' vs Solgaard Atlas Rolltop Backpack
The DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' is 28L and 1.7kg3.7lb; the Solgaard Atlas Rolltop Backpack is 27L and 1.7kg3.7lb. They weigh the same. The Solgaard Atlas Rolltop Backpack costs $24 less. The DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' fits the carry-on limit of 36 of 36 major airlines and the Solgaard Atlas Rolltop Backpack fits 36; under the seat, 0 and 0 of 26.
| Spec | DEFY VerBockel Rolltop Backpack 2.0 'Un-Zipped' | Solgaard Atlas Rolltop Backpack |
|---|---|---|
| Price | $299 | $275Best |
| Volume | 28L | 27L |
| Expands to | 40L | 31L |
| Weight | 1.7kg3.7lb | 1.7kg3.7lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 47×34.3×16.5cm18.5×13.5×6.5in | 48×31×18cm19×12×7in |
| Laptop | 16" | 16" |
| Compartments | n/a | 3 |
| Bottle pockets | n/a | 2 |
| Opening | Roll-top, roll-top main compartment with AustriAlpin COBRA buckle | Roll-top, Dual-zip roll-top with top buckle |
| Warranty | No fixed term | 2 years |
| Organizer | No | Removable |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | Yes | No |
| Hip belt | No | Insert sold separately |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | Yes |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | 1050D MIL-SPEC ballistic nylon exterior, ECOPAK EPX 200D recycled polyester lining, YKK AquaGuard zippers | Shore-Tex recycled ocean-bound plastic fabric |
| Last checked | 2026-10 | 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.