Boundary Supply Prima vs. Aer Travel Pack 2
Two carry-on travel backpacks, compared spec for spec.
Boundary Supply Prima
| Capacity | 30 L |
| Weight | 1.9 kg |
| Dimensions | 53×31×18 cm |
| Airline fit | 88% |
| Price | $319 |
Feature by feature
| Boundary Supply Prima | Feature | Aer Travel Pack 2 |
|---|---|---|
| Storage | ||
| 2 | Compression | 4 |
| None | Expanded Capacity | None |
| 3 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | optional |
| removable | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 16in |
| 0 | Main Compartments | 5 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| 500D Kodra Nylon YKK StormGuard | Grey: 900D eco-dyed polyester Black / Blue: 1680D Cordura® ballistic nylon exterior |
Key differences between the Boundary Supply Prima and Aer Travel Pack 2
- Compression straps: 2 on the Boundary Supply Prima; 4 on the Aer Travel Pack 2.
- Opening: Top flap on the Boundary Supply Prima; Clamshell on the Aer Travel Pack 2.
- Hip belt: Removable on the Boundary Supply Prima; Optional on the Aer Travel Pack 2.
Both have: passport pocket, luggage passthrough, 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. 130 accept both. 37 accept only the Boundary Supply Prima, and 0 accept only the Aer Travel Pack 2.
Only the Boundary Supply Prima fits
Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Royal Brunei Airlines, 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), Volotea, WestJet, Xiamen.
Boundary Supply Prima vs. Aer Travel Pack 2: which should you pack?
The Aer Travel Pack 2 carries 3L more than the Boundary Supply Prima (30L vs. 33L), while the Aer Travel Pack 2 is the lighter pack at 1.7kg (vs. 1.9kg). For carry-on flexibility, the Boundary Supply Prima fits 88% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Travel Pack 2; if you want to travel lighter, the Aer Travel Pack 2 is the better call.