Cabin Zero ADV Pro Backpack 42L vs Cotopaxi Allpa 42L Travel Pack
The Cabin Zero ADV Pro Backpack 42L is 42L and 1.5kg3.3lb; the Cotopaxi Allpa 42L Travel Pack is 42L and 1.42kg3.1lb. The Cotopaxi Allpa 42L Travel Pack is 0.08kg0.2lb lighter. The Cabin Zero ADV Pro Backpack 42L costs $56 less. The Cabin Zero ADV Pro Backpack 42L fits the carry-on limit of 35 of 36 major airlines and the Cotopaxi Allpa 42L Travel Pack fits 0; under the seat, 0 and 0 of 26.
| Spec | Cabin Zero ADV Pro Backpack 42L | Cotopaxi Allpa 42L Travel Pack |
|---|---|---|
| Price | $199Best | $255 |
| Volume | 42L | 42L |
| Weight | 1.5kg3.3lb | 1.42kg3.1lbBest |
| Carry-on compliance | 97%Best | 0% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 55×35×20cm21.5×14×8in | 55.9×35.6×27.9cm22×14×11in |
| Laptop | 17"Best | 15" |
| Bottle pockets | 1 | 1 |
| Opening | Panel access, Main compartment loads from the top or the front | Clamshell, Suitcase-style full-wrap zipper opening |
| Warranty | Lifetime | Lifetime |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | Yes | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | Yes | Removable |
| Sternum strap | Yes | No |
| Load lifters | Yes | No |
| Shoulder strap | Hideable | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | 500 denier nylon rip-stop body, 70 denier polyester rip-stop lining, water-resistant, YKK zips | 100% recycled fabrics; water-resistant TPU-coated shell with PFAS-free C0 DWR finish and PU backing |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Cabin Zero ADV Pro Backpack 42L | Cotopaxi Allpa 42L Travel 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 |
| American Airlines | Carry-on | 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 |
| Cebu Pacific | Carry-on | Fits | Too big |
| Delta Air Lines | Carry-on | Fits | Too big |
| easyJet | Carry-on | Fits | Too big |
| Emirates | Carry-on | Fits | Too big |
| Frontier Airlines | Carry-on | 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 |
| Lufthansa | Carry-on | Fits | Too big |
| Norwegian Air Shuttle | Carry-on | Fits | Too big |
| Qantas | Carry-on | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| SAS | Carry-on | Fits | Too big |
| Singapore Airlines | 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 |
| 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.