Boundary Supply Rennen MKII X-Pac vs Heimplanet Carry Essentials Commuter Pack
The Boundary Supply Rennen MKII X-Pac is 18L and 0.85kg1.9lb; the Heimplanet Carry Essentials Commuter Pack is 18L and 0.85kg1.9lb. They weigh the same. The Boundary Supply Rennen MKII X-Pac fits the carry-on limit of 36 of 36 major airlines and the Heimplanet Carry Essentials Commuter Pack fits 1; under the seat, 7 and 0 of 26.
| Spec | Boundary Supply Rennen MKII X-Pac | Heimplanet Carry Essentials Commuter Pack |
|---|---|---|
| Price | $199 | n/a |
| Volume | 18L | 18L |
| Weight | 0.85kg1.9lb | 0.85kg1.9lb |
| Carry-on compliance | 100%Best | 3% |
| Personal-item compliance | 27%Best | 0% |
| Dimensions | 45×29×17.5cm17.5×11.5×7in | 64×28×20cm25×11×8in |
| Laptop | 16"Best | 15" |
| Bottle pockets | 2 | n/a |
| Opening | wide coated zip opening, external laptop access | Roll-top |
| Warranty | Lifetime | Lifetime |
| 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 | Yes |
| Camera compartment | No | No |
| Material | PFAS-free Dimension-Polyant X-Pac ripstop, bluesign recycled interior | Dyecoshell 100% nylon, PU coated inside with C6 DWR; polyester lining; EVA foam |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Boundary Supply Rennen MKII X-Pac | Heimplanet Carry Essentials Commuter Pack |
|---|---|---|---|
| Air Arabia | Carry-on | Fits | Too big |
| Air Canada | Carry-on | Fits | Too big |
| Air France | Carry-on | Fits | Too big |
| Air India | Carry-on | Fits | Too big |
| AirAsia | Carry-on | Fits | Too big |
| Alaska Airlines | Carry-on | Fits | Too big |
| Allegiant Air | Carry-on | Fits | Too big |
| Allegiant Air | Personal item | Fits | Too big |
| American Airlines | Carry-on | Fits | Too big |
| American Airlines | Personal item | Fits | Too big |
| ANA (All Nippon Airways) | Carry-on | Fits | Too big |
| Avianca | Carry-on | Fits | Too big |
| British Airways | Carry-on | Fits | Too big |
| British Airways | Personal item | Fits | Too big |
| Cebu Pacific | Carry-on | Fits | Too big |
| Delta Air Lines | Carry-on | Fits | Too big |
| easyJet | Carry-on | Fits | Too big |
| easyJet | Personal item | Fits | Too big |
| Emirates | Carry-on | Fits | Too big |
| Frontier Airlines | Carry-on | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| Gol Linhas Aereas | Carry-on | Fits | Too big |
| IndiGo | Carry-on | Fits | Too big |
| JetBlue Airways | Carry-on | Fits | Too big |
| KLM | Carry-on | Fits | Too big |
| LATAM Airlines | Carry-on | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| Lufthansa | Carry-on | Fits | Too big |
| Norwegian Air Shuttle | Carry-on | Fits | Too big |
| Qantas | Carry-on | Fits | Too big |
| Qatar Airways | Carry-on | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| SAS | Carry-on | Fits | Too big |
| Southwest Airlines | Carry-on | Fits | Too big |
| Turkish Airlines | Carry-on | Fits | Too big |
| United Airlines | Carry-on | Fits | Too big |
| Vietjet Air | Carry-on | Fits | Too big |
| Volaris | Carry-on | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
| Vueling | Carry-on | Fits | Too big |
| WestJet | Carry-on | Fits | Too big |
| Wizz Air | Carry-on | 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.