Tortuga Setout Divide vs. Boundary Supply -- Prima System Modular Travel Backpack
Two carry-on travel backpacks, compared spec for spec.
Tortuga Setout Divide
| Capacity | 26 L |
| Weight | 1.7 kg |
| Dimensions | 51×34×16 cm |
| Airline fit | 89% |
| Price | $209 |
Feature by feature
| Tortuga Setout Divide | Feature | Boundary Supply -- Prima System Modular Travel Backpack |
|---|---|---|
| Storage | ||
| Y | Compression | Y |
| None | Expanded Capacity | 30L |
| 0 | Opening | 0 |
| front | Passport | Y |
| Y | Passthrough | Y |
| Carry | ||
| hideable | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside | ||
| 15in | Laptop | 17in |
| 4 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |
| Material | |
| 900D heathered polyester | Nywool, Nylon, Kodra Nylon |
Boundary Supply -- Prima System Modular Travel Backpack
| Capacity | 22 L |
| Weight | 1.4 kg |
| Dimensions | 49×28×13 cm |
| Airline fit | 92% |
| Price | $268 |
Key differences between the Tortuga Setout Divide and Boundary Supply -- Prima System Modular Travel Backpack
- Passport pocket: Front on the Tortuga Setout Divide; Yes on the Boundary Supply -- Prima System Modular Travel Backpack.
- Backpack straps: Hideable on the Tortuga Setout Divide; Yes on the Boundary Supply -- Prima System Modular Travel Backpack.
- Laptop sleeve: 15in on the Tortuga Setout Divide; 17in on the Boundary Supply -- Prima System Modular Travel Backpack.
- Main compartments: 4 on the Tortuga Setout Divide; 1 on the Boundary Supply -- Prima System Modular Travel Backpack.
- Water bottle pockets: No on the Tortuga Setout Divide; 1 on the Boundary Supply -- Prima System Modular Travel Backpack.
Both have: compression straps, luggage passthrough, hip belt, sternum strap, 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. 169 accept both. 0 accept only the Tortuga Setout Divide, and 5 accept only the Boundary Supply -- Prima System Modular Travel Backpack.
Only the Boundary Supply -- Prima System Modular Travel Backpack fits
Air Niugini, Belavia, Etihad Airways, Great Lakes Airlines, Qatar Airways.
Tortuga Setout Divide vs. Boundary Supply -- Prima System Modular Travel Backpack: which should you pack?
The Tortuga Setout Divide carries 4L more than the Boundary Supply -- Prima System Modular Travel Backpack (26L vs. 22L), while the Boundary Supply -- Prima System Modular Travel Backpack is the lighter pack at 1.4kg (vs. 1.7kg). 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 Tortuga Setout Divide; if you want to travel lighter, the Boundary Supply -- Prima System Modular Travel Backpack is the better call.