DEFY Insidious Sling vs NIID CACHE Hybrid Tech Sling 13L
The DEFY Insidious Sling is 10.5L and 1.13kg2.5lb; the NIID CACHE Hybrid Tech Sling 13L is 13L and 1.2kg2.6lb. The DEFY Insidious Sling is 0.07kg0.2lb lighter. The NIID CACHE Hybrid Tech Sling 13L costs $138.01 less. The DEFY Insidious Sling fits the carry-on limit of 36 of 36 major airlines and the NIID CACHE Hybrid Tech Sling 13L fits 36; under the seat, 11 and 0 of 26.
| Spec | DEFY Insidious Sling | NIID CACHE Hybrid Tech Sling 13L |
|---|---|---|
| Price | $278 | $139.99Best |
| Volume | 10.5L | 13L |
| Weight | 1.13kg2.5lbBest | 1.2kg2.6lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 42%Best | 0% |
| Dimensions | 22.9×40.6×12.7cm9×16×5in | 24×50×12cm9.5×19.5×4.5in |
| Laptop | 14" | 16"Best |
| Compartments | 3 | n/a |
| Opening | three YKK AquaGuard zip compartments | n/a |
| Warranty | No fixed term | 1 year |
| 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 | Removable | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | 1050D water-resistant MIL-SPEC ballistic nylon exterior, 1000D water-resistant silver CORDURA lining, YKK AquaGuard zippers | Polyester Fabric |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | DEFY Insidious Sling | NIID CACHE Hybrid Tech Sling 13L |
|---|---|---|---|
| Air Canada | Personal item | Fits | Too big |
| Allegiant Air | Personal item | Fits | Too big |
| American Airlines | Personal item | Fits | Too big |
| British Airways | Personal item | Fits | Too big |
| easyJet | Personal item | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| JetBlue Airways | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| United Airlines | Personal item | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
| WestJet | 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.