DEFY Insidious Sling vs Peak Design Everyday Sling 10L
The DEFY Insidious Sling is 10.5L and 1.13kg2.5lb; the Peak Design Everyday Sling 10L is 10L and 0.88kg1.9lb. The Peak Design Everyday Sling 10L is 0.25kg0.6lb lighter. The Peak Design Everyday Sling 10L costs $108.05000000000001 less. The DEFY Insidious Sling fits the carry-on limit of 36 of 36 major airlines and the Peak Design Everyday Sling 10L fits 36; under the seat, 11 and 7 of 26.
| Spec | DEFY Insidious Sling | Peak Design Everyday Sling 10L |
|---|---|---|
| Price | $278 | $169.95Best |
| Volume | 10.5L | 10L |
| Weight | 1.13kg2.5lb | 0.88kg1.9lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 42%Best | 27% |
| Dimensions | 22.9×40.6×12.7cm9×16×5in | 26×45×15cm10×17.5×6in |
| Laptop | 14"Best | 13" |
| Compartments | 3 | n/a |
| Opening | three YKK AquaGuard zip compartments | Weatherproof UltraZip main opening |
| Warranty | No fixed term | 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 | Removable | No |
| Luggage pass-through | No | No |
| Camera compartment | No | Yes |
| Material | 1050D water-resistant MIL-SPEC ballistic nylon exterior, 1000D water-resistant silver CORDURA lining, YKK AquaGuard zippers | 400D double poly-coated DWR-impregnated nylon canvas shell (100% recycled), 900D waterproof bottom liner, anodized aluminum and glass-reinforced nylon hardware, UltraZips with UHMPE thread |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | DEFY Insidious Sling | Peak Design Everyday Sling 10L |
|---|---|---|---|
| Air Canada | Personal item | Fits | Too big |
| JetBlue Airways | Personal item | Fits | Too big |
| United Airlines | Personal item | Fits | Too big |
| WestJet | Personal item | Fits | Too big |
Add more bags to this comparison
Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.