Patagonia Atom Sling 8L vs Peak Design Outdoor Sling 7L
The Patagonia Atom Sling 8L is 8L and 0.34kg0.7lb; the Peak Design Outdoor Sling 7L is 7.5L and 0.335kg0.7lb. The Peak Design Outdoor Sling 7L is 0.01kg0lb lighter. The Patagonia Atom Sling 8L costs $30.950000000000003 less. The Patagonia Atom Sling 8L fits the carry-on limit of 36 of 36 major airlines and the Peak Design Outdoor Sling 7L fits 36; under the seat, 23 and 21 of 26.
| Spec | Patagonia Atom Sling 8L | Peak Design Outdoor Sling 7L |
|---|---|---|
| Price | $69Best | $99.95 |
| Volume | 8L | 7.5L |
| Weight | 0.34kg0.7lb | 0.335kg0.7lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 88%Best | 81% |
| Dimensions | 34.3×22.9×7.6cm13.5×9×3in | 22×35×11cm8.5×14×4.5in |
| Compartments | 1 | n/a |
| Bottle pockets | 0 | n/a |
| Opening | zippered main compartment with an internal divider | n/a |
| Warranty | Lifetime | 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 | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | Insert sold separately |
| Material | 400D 100% postconsumer recycled polyester ripstop with PU coating and PFAS-free DWR, 200D recycled polyester lining, recycled polyester airmesh strap | Terra Shell 210D ripstop nylon (100% recycled, bluesign approved) with internal PU coating rated 1500mm, PFAS-free water repellent, #5 weatherproof UltraZips, nylon mesh back panel |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Patagonia Atom Sling 8L | Peak Design Outdoor Sling 7L |
|---|---|---|---|
| AirAsia | Personal item | Fits | Too big |
| Singapore Airlines | 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.