DEFY The Parker Pack 2.0 vs The Brown Buffalo Concealsling
The DEFY The Parker Pack 2.0 is 3L and 0.45kg1lb; the The Brown Buffalo Concealsling is 2.8L and 0.41kg0.9lb. The The Brown Buffalo Concealsling is 0.04kg0.1lb lighter. The The Brown Buffalo Concealsling costs $39 less. The DEFY The Parker Pack 2.0 fits the carry-on limit of 36 of 36 major airlines and the The Brown Buffalo Concealsling fits 36; under the seat, 23 and 26 of 26.
| Spec | DEFY The Parker Pack 2.0 | The Brown Buffalo Concealsling |
|---|---|---|
| Price | $168 | $129Best |
| Volume | 3L | 2.8L |
| Weight | 0.45kg1lb | 0.41kg0.9lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 88% | 100%Best |
| Dimensions | 15.2×20.3×10.2cm6×8×4in | 19.1×29.2×6.3cm7.5×11.5×2.5in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Compartments | 2 | n/a |
| Opening | two YKK AquaGuard zip compartments | taco-shell zip opening |
| Warranty | No fixed term | Lifetime |
| Organizer | No | 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 | No | No |
| Camera compartment | No | No |
| Material | 1050D water-resistant MIL-SPEC ballistic nylon exterior, 1000D water-resistant silver CORDURA interior | CORDURA 1050D ballistic nylon (DWR, PU2) or Challenge Sailcloth EPX400, YKK RCPU2 zips |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | DEFY The Parker Pack 2.0 | The Brown Buffalo Concealsling |
|---|---|---|---|
| AirAsia | Personal item | Too big | Fits |
| Singapore Airlines | Personal item | Too big | Fits |
| Vietjet Air | Personal item | Too big | Fits |
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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.