Boundary Supply Arris Pack vs. Tortuga Expandable Backpack
Two carry-on travel backpacks, compared spec for spec.
Boundary Supply Arris Pack
| Capacity | 35 L |
| Weight | 2 kg |
| Dimensions | 56×33×23 cm |
| Airline fit | 47% |
| Price | $400 |
Feature by feature
| Boundary Supply Arris Pack | Feature | Tortuga Expandable Backpack |
|---|---|---|
| Storage | ||
| N | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top, front |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y, hideable |
| Y | Hip Belt | Y, removable |
| Y | Sternum Strap | Y |
| Inside | ||
| 17in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| 400D TPU Nylon | 630D CORDURA |
Tortuga Expandable Backpack
| Capacity | 27 L |
| Weight | 1.6 kg |
| Dimensions | 49×32×18 cm |
| Airline fit | 91% |
| Price | $250 |
Key differences between the Boundary Supply Arris Pack and Tortuga Expandable Backpack
- Compression straps: No on the Boundary Supply Arris Pack; 4 on the Tortuga Expandable Backpack.
- Passport pocket: Top on the Boundary Supply Arris Pack; Top, front on the Tortuga Expandable Backpack.
- Backpack straps: Yes on the Boundary Supply Arris Pack; Y, hideable on the Tortuga Expandable Backpack.
- Hip belt: Yes on the Boundary Supply Arris Pack; Y, removable on the Tortuga Expandable Backpack.
- Laptop sleeve: 17in on the Boundary Supply Arris Pack; 16in on the Tortuga Expandable Backpack.
Both have: luggage passthrough, sternum strap, 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. 88 accept both. 0 accept only the Boundary Supply Arris Pack, and 84 accept only the Tortuga Expandable Backpack.
Only the Tortuga Expandable Backpack fits
Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Serbia, Air Seychelles, All Nipon Airways, ANA, Asiana Airlines, ATA Airlines, Austrian, Azerbaijan Airlines, Belavia, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, China Eastern, Czech Airlines, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, Fiji Airways, Flair Air, flybe, Gol Linhas Aereas, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Japan Airlines, Jet Airways, Juneyao Airlines, Kenya Airways, KLM, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Oman Air, Pakistan International, Peach, Porter Airlines, Qatar Airways, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Turkish Airlines, Ukraine International, VIM Airlines (Closed), Volotea, WestJet, Xiamen.
Boundary Supply Arris Pack vs. Tortuga Expandable Backpack: which should you pack?
The Boundary Supply Arris Pack carries 8L more than the Tortuga Expandable Backpack (35L vs. 27L), while the Tortuga Expandable Backpack is the lighter pack at 1.6kg (vs. 2kg). For carry-on flexibility, the Tortuga Expandable Backpack fits 91% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Boundary Supply Arris Pack; if you want to travel lighter, the Tortuga Expandable Backpack is the better call.