Aer Travel Pack 4 35L vs. Bellroy Transit Backpack Plus
Two carry-on travel backpacks, compared spec for spec.
Aer Travel Pack 4 35L
| Capacity | 35 L |
| Weight | 1.8 kg |
| Dimensions | 55×34×23 cm |
| Airline fit | 68% |
| Price | $260 |
Feature by feature
| Aer Travel Pack 4 35L | Feature | Bellroy Transit Backpack Plus |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| optional | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 16in |
| 5 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| 1680D CORDURA® ballistic nylon exterior (bluesign® approved) | Baida Nylon |
Bellroy Transit Backpack Plus
| Capacity | 38 L |
| Weight | 1.5 kg |
| Dimensions | 55×38×24 cm |
| Airline fit | 19% |
| Price | $320 |
Key differences between the Aer Travel Pack 4 35L and Bellroy Transit Backpack Plus
- Luggage passthrough: Yes on the Aer Travel Pack 4 35L; No on the Bellroy Transit Backpack Plus.
- Hip belt: Optional on the Aer Travel Pack 4 35L; No on the Bellroy Transit Backpack Plus.
- Main compartments: 5 on the Aer Travel Pack 4 35L; 4 on the Bellroy Transit Backpack Plus.
Both have: passport pocket, backpack straps, sternum strap, laptop sleeve, built-in organizer, water bottle pockets, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 35 accept both. 94 accept only the Aer Travel Pack 4 35L, and 0 accept only the Bellroy Transit Backpack Plus.
Only the Aer Travel Pack 4 35L fits
Aerolineas Argentinas, Air Asia, Air Canada, Air Europa, Air France, Air India, Air Koryo, Air Macau, Air Mauritius, Air Tahiti Nui, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Austrian, Avianca , Azerbaijan Airlines, Azul Linhas, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, Brussels Airlines, Cambodia Angkor Air, Caribbean Airlines, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Southern, CommutAir, Conviasa, Copa Airlines, Croatia Air, Cubana de Aviacion, Delta Airlines, Dragonair, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Flair Air, Garuda Indonesia, Hainan Airlines, Hawaiian Airlines, Hong Kong Airlines, Indigo, Iran Air, Iran Aseman Air, Jet Airways, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Korean Air, Kulula, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Norwegian, Philippine Airlines, Porter Airlines, Qantas Airways, Republic Airways, Royal Air Morocco, SAS Scandinavian, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Sky Airlines, Skywest, Inc., South African Airways, SpiceJet, SriLankan Airlines, Swiss Int'l Air Lines, TAAG Angola, TAM Airlines, Trans States, Turkish Airlines, United Airlines, Ural Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic.
Aer Travel Pack 4 35L vs. Bellroy Transit Backpack Plus: which should you pack?
The Bellroy Transit Backpack Plus carries 3L more than the Aer Travel Pack 4 35L (35L vs. 38L), while the Bellroy Transit Backpack Plus is the lighter pack at 1.5kg (vs. 1.8kg). For carry-on flexibility, the Aer Travel Pack 4 35L fits 68% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Bellroy Transit Backpack Plus; if you want to travel lighter, the Bellroy Transit Backpack Plus is the better call.