Aer Day Sling 4 vs Pacsafe V Anti-Theft Action Sling Pack
The Aer Day Sling 4 is 2.5L and 0.34kg0.7lb; the Pacsafe V Anti-Theft Action Sling Pack is 2.5L and 0.37kg0.8lb. The Aer Day Sling 4 is 0.03kg0.1lb lighter. The Aer Day Sling 4 costs $20.950000000000003 less. The Aer Day Sling 4 fits the carry-on limit of 36 of 36 major airlines and the Pacsafe V Anti-Theft Action Sling Pack fits 36; under the seat, 26 and 25 of 26.
| Spec | Aer Day Sling 4 | Pacsafe V Anti-Theft Action Sling Pack |
|---|---|---|
| Price | $79Best | $99.95 |
| Volume | 2.5L | 2.5L |
| Weight | 0.34kg0.7lbBest | 0.37kg0.8lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 100%Best | 96% |
| Dimensions | 15×24×7.5cm6×9.5×3in | 33×16×6.1cm13×6.5×2.5in |
| Laptop | 8.3" | no laptop sleeve |
| Opening | Main compartment opens wide | n/a |
| Warranty | Lifetime | 5 years |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | 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 | 1680D CORDURA ballistic nylon exterior (bluesign approved), lightweight ripstop nylon interior (bluesign approved), YKK zippers, Duraflex hardware | 750D recycled polyester, water resistant 1000mm, PFC-free; 150D recycled polyester lining |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Aer Day Sling 4 | Pacsafe V Anti-Theft Action Sling Pack |
|---|---|---|---|
| Vietjet Air | Personal item | 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.