Boundary Supply Errant MKII X-Pac vs Vertx Urban Ghost 20L
The Boundary Supply Errant MKII X-Pac is 20L and 1.03kg2.3lb; the Vertx Urban Ghost 20L is 20L and 1.02kg2.2lb. The Vertx Urban Ghost 20L is 0.01kg0lb lighter. The Vertx Urban Ghost 20L costs $120.00999999999999 less. The Boundary Supply Errant MKII X-Pac fits the carry-on limit of 36 of 36 major airlines and the Vertx Urban Ghost 20L fits 31; under the seat, 0 and 0 of 26.
| Spec | Boundary Supply Errant MKII X-Pac | Vertx Urban Ghost 20L |
|---|---|---|
| Price | $299 | $178.99Best |
| Volume | 20L | 20L |
| Weight | 1.03kg2.3lb | 1.02kg2.2lbBest |
| Carry-on compliance | 100%Best | 86% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 48.3×30.5×17.8cm19×12×7in | 50.8×33×20.3cm20×13×8in |
| Laptop | 17" | sleeve, size not published |
| Bottle pockets | 2 | 2 |
| Opening | Clamshell, opens flat | Zip-down front panel |
| Warranty | Lifetime | 2 years |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | Insert sold separately | No |
| Bike-ready | No | No |
| Material | U.S.-made VX21 X-Pac | 420D polycarbonate-coated ripstop, 210HD nylon PU-coated lining |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Boundary Supply Errant MKII X-Pac | Vertx Urban Ghost 20L |
|---|---|---|---|
| Air Arabia | Carry-on | Fits | Too big |
| Air India | Carry-on | Fits | Too big |
| Qatar Airways | Carry-on | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| Vueling | Carry-on | Fits | Too big |
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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.