Aer Travel Pack 4 35L vs. Alpaka Gear Traverse Backpack
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 | Alpaka Gear Traverse Backpack |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| optional | Hip Belt | N |
| removable | Sternum Strap | Y |
| Inside | ||
| 16in | Laptop | 16in |
| 5 | Main Compartments | 5 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| 1680D CORDURA® ballistic nylon exterior (bluesign® approved) | Axoflux 400D ripstop nylon |
Alpaka Gear Traverse Backpack
| Capacity | 30 L |
| Weight | 1.5 kg |
| Dimensions | 47×28×18 cm |
| Airline fit | 93% |
| Price | $200 |
Key differences between the Aer Travel Pack 4 35L and Alpaka Gear Traverse Backpack
- Hip belt: Optional on the Aer Travel Pack 4 35L; No on the Alpaka Gear Traverse Backpack.
- Sternum strap: Removable on the Aer Travel Pack 4 35L; Yes on the Alpaka Gear Traverse Backpack.
- Water bottle pockets: 2, side on the Aer Travel Pack 4 35L; 1, side on the Alpaka Gear Traverse Backpack.
Both have: passport pocket, luggage passthrough, backpack straps, laptop sleeve, built-in organizer, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 129 accept both. 0 accept only the Aer Travel Pack 4 35L, and 47 accept only the Alpaka Gear Traverse Backpack.
Only the Alpaka Gear Traverse Backpack fits
Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Great Lakes Airlines, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.
Aer Travel Pack 4 35L vs. Alpaka Gear Traverse Backpack: which should you pack?
The Aer Travel Pack 4 35L carries 5L more than the Alpaka Gear Traverse Backpack (35L vs. 30L), while the Alpaka Gear Traverse Backpack is the lighter pack at 1.5kg (vs. 1.8kg). For carry-on flexibility, the Alpaka Gear Traverse Backpack fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Travel Pack 4 35L; if you want to travel lighter, the Alpaka Gear Traverse Backpack is the better call.