Boundary Supply Rennen MKII X-Pac vs Côte&Ciel Saru
The Boundary Supply Rennen MKII X-Pac is 18L and 0.85kg1.9lb; the Côte&Ciel Saru is 18L and 0.84kg1.9lb. The Côte&Ciel Saru is 0.01kg0lb lighter. The Boundary Supply Rennen MKII X-Pac costs $111 less. The Boundary Supply Rennen MKII X-Pac fits the carry-on limit of 36 of 36 major airlines and the Côte&Ciel Saru fits 36; under the seat, 7 and 7 of 26.
| Spec | Boundary Supply Rennen MKII X-Pac | Côte&Ciel Saru |
|---|---|---|
| Price | $199Best | $310 |
| Volume | 18L | 18L |
| Weight | 0.85kg1.9lb | 0.84kg1.9lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27% | 27% |
| Dimensions | 45×29×17.5cm17.5×11.5×7in | 44×28.5×14cm17.5×11×5.5in |
| Laptop | 16" | 16" |
| Bottle pockets | 2 | n/a |
| Opening | wide coated zip opening, external laptop access | main compartment under two top buckles, three external pockets |
| Warranty | Lifetime | 1 year |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | Yes | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | Yes | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | PFAS-free Dimension-Polyant X-Pac ripstop, bluesign recycled interior | Sleek Black nylon (100% nylon front shell) |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
Both bags pass and fail the same airline size limits.
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.