BAGSMART Cloud 20L Backpack vs Boundary Supply Errant MKII X-Pac
The BAGSMART Cloud 20L Backpack is 20L and 1kg2.2lb; the Boundary Supply Errant MKII X-Pac is 20L and 1.03kg2.3lb. The BAGSMART Cloud 20L Backpack is 0.03kg0.1lb lighter. The BAGSMART Cloud 20L Backpack costs $224.01 less. The BAGSMART Cloud 20L Backpack fits the carry-on limit of 36 of 36 major airlines and the Boundary Supply Errant MKII X-Pac fits 36; under the seat, 0 and 0 of 26.
| Spec | BAGSMART Cloud 20L Backpack | Boundary Supply Errant MKII X-Pac |
|---|---|---|
| Price | $74.99Best | $299 |
| Volume | 20L | 20L |
| Expands to | 23L | n/a |
| Weight | 1kg2.2lbBest | 1.03kg2.3lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 46.5×34×14.5cm18.5×13.5×5.5in | 48.3×30.5×17.8cm19×12×7in |
| Laptop | 15" | 17"Best |
| Bottle pockets | n/a | 2 |
| Opening | flap with full-length side zip | Clamshell, opens flat |
| Warranty | 1 year | Lifetime |
| Organizer | Yes | Yes |
| 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 | Yes | Yes |
| Camera compartment | No | Insert sold separately |
| Material | Water-repellent 300D polyester (spec table lists a PVC exterior); polyester interior | U.S.-made VX21 X-Pac |
| 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.