Boundary Supply -- Prima System Modular Travel Backpack vs. Alpha One-Niner Recon Nine Evade 1.5
Two carry-on travel backpacks, compared spec for spec.
Boundary Supply -- Prima System Modular Travel Backpack
| Capacity | 22 L |
| Weight | 1.4 kg |
| Dimensions | 49×28×13 cm |
| Airline fit | 92% |
| Price | $268 |
Feature by feature
| Boundary Supply -- Prima System Modular Travel Backpack | Feature | Alpha One-Niner Recon Nine Evade 1.5 |
|---|---|---|
| Storage | ||
| Y | Compression | Y |
| 30L | Expanded Capacity | None |
| 0 | Opening | 0 |
| Y | Passport | back |
| Y | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 17in | Laptop | 17in |
| 1 | Main Compartments | 5 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |
| Material | |
| Nywool, Nylon, Kodra Nylon | Solid Color 500D Nylonor Camouflage 500D Nylon Corduraor 420D Diamond Ripstop Nylon |
Alpha One-Niner Recon Nine Evade 1.5
| Capacity | 27 L |
| Weight | 1.6 kg |
| Dimensions | 47×31×18 cm |
| Airline fit | 92% |
| Price | $160 |
Key differences between the Boundary Supply -- Prima System Modular Travel Backpack and Alpha One-Niner Recon Nine Evade 1.5
- Passport pocket: Yes on the Boundary Supply -- Prima System Modular Travel Backpack; Back on the Alpha One-Niner Recon Nine Evade 1.5.
- Luggage passthrough: Yes on the Boundary Supply -- Prima System Modular Travel Backpack; No on the Alpha One-Niner Recon Nine Evade 1.5.
- Hip belt: Removable on the Boundary Supply -- Prima System Modular Travel Backpack; No on the Alpha One-Niner Recon Nine Evade 1.5.
- Main compartments: 1 on the Boundary Supply -- Prima System Modular Travel Backpack; 5 on the Alpha One-Niner Recon Nine Evade 1.5.
- Water bottle pockets: 1 on the Boundary Supply -- Prima System Modular Travel Backpack; 2 on the Alpha One-Niner Recon Nine Evade 1.5.
Both have: compression straps, backpack straps, sternum strap, 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. 172 accept both. 2 accept only the Boundary Supply -- Prima System Modular Travel Backpack, and 2 accept only the Alpha One-Niner Recon Nine Evade 1.5.
Only the Boundary Supply -- Prima System Modular Travel Backpack fits
Air Niugini, Great Lakes Airlines.
Only the Alpha One-Niner Recon Nine Evade 1.5 fits
Regional Express, Virgin Australia.
Boundary Supply -- Prima System Modular Travel Backpack vs. Alpha One-Niner Recon Nine Evade 1.5: which should you pack?
The Alpha One-Niner Recon Nine Evade 1.5 carries 5L more than the Boundary Supply -- Prima System Modular Travel Backpack (22L vs. 27L), while the Boundary Supply -- Prima System Modular Travel Backpack is the lighter pack at 1.4kg (vs. 1.6kg). For carry-on flexibility, the Boundary Supply -- Prima System Modular Travel Backpack fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner Recon Nine Evade 1.5; if you want to travel lighter, the Boundary Supply -- Prima System Modular Travel Backpack is the better call.