Boundary Supply Rennen Pro X-Pac vs Sympl Commuter Pack 20L
The Boundary Supply Rennen Pro X-Pac is 20L and 1.45kg3.2lb; the Sympl Commuter Pack 20L is 20L and 1.41kg3.1lb. The Sympl Commuter Pack 20L is 0.04kg0.1lb lighter. The Sympl Commuter Pack 20L costs $160 less. The Boundary Supply Rennen Pro X-Pac fits the carry-on limit of 36 of 36 major airlines and the Sympl Commuter Pack 20L fits 36; under the seat, 0 and 1 of 26.
| Spec | Boundary Supply Rennen Pro X-Pac | Sympl Commuter Pack 20L |
|---|---|---|
| Price | $399 | $239Best |
| Volume | 20L | 20L |
| Weight | 1.45kg3.2lb | 1.41kg3.1lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 4%Best |
| Dimensions | 48×29×17.5cm19×11.5×7in | 45.7×30.5×16.5cm18×12×6.5in |
| Laptop | 17"Best | 16" |
| Bottle pockets | 2 | 2 |
| Opening | n/a | Clamshell, clamshell main compartment, top access laptop compartment, tech caddy compartment, quick access front pocket |
| 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 | Yes | Yes |
| Camera compartment | No | No |
| Material | X-Pac VX21 Ocean Edition outer, recycled 230D nylon ripstop liner | 100% recycled 420D CORDURA Ballistic Re/Cor nylon (Carbonate) with TPU coated lower and polycarbonate coated upper panels, 210D ripstop nylon lining, YKK AquaGuard exterior zippers, Duraflex hardware |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Boundary Supply Rennen Pro X-Pac | Sympl Commuter Pack 20L |
|---|---|---|---|
| Frontier Airlines | Personal item | Too big | Fits |
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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.