Boundary Supply Errant Daypack vs. Hynes Eagle 40L Flight Approved Compressible Carry
Two carry-on travel backpacks, compared spec for spec.
Boundary Supply Errant Daypack
| Capacity | 22 L |
| Weight | 1.4 kg |
| Dimensions | 48×26×14 cm |
| Airline fit | 93% |
| Price | $269 |
Feature by feature
| Boundary Supply Errant Daypack | Feature | Hynes Eagle 40L Flight Approved Compressible Carry |
|---|---|---|
| Storage | ||
| 1 | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| back | Passport | back |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | Y |
| Inside | ||
| 15in | Laptop | 15in |
| 5 | Main Compartments | 5 |
| N | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | N |
| Material | |
| 500D Duramax Kodra | Water repellent Nylon |
Hynes Eagle 40L Flight Approved Compressible Carry
| Capacity | 40 L |
| Weight | 1 kg |
| Dimensions | 51×34×25 cm |
| Airline fit | 39% |
| Price | $72 |
Key differences between the Boundary Supply Errant Daypack and Hynes Eagle 40L Flight Approved Compressible Carry
- Compression straps: 1 on the Boundary Supply Errant Daypack; 4 on the Hynes Eagle 40L Flight Approved Compressible Carry.
- Sternum strap: Removable on the Boundary Supply Errant Daypack; Yes on the Hynes Eagle 40L Flight Approved Compressible Carry.
- Built-in organizer: No on the Boundary Supply Errant Daypack; Yes on the Hynes Eagle 40L Flight Approved Compressible Carry.
- Water resistant: Yes on the Boundary Supply Errant Daypack; No on the Hynes Eagle 40L Flight Approved Compressible Carry.
Both have: passport pocket, luggage passthrough, backpack straps, hip belt, laptop sleeve, water bottle pockets.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 73 accept both. 103 accept only the Boundary Supply Errant Daypack, and 0 accept only the Hynes Eagle 40L Flight Approved Compressible Carry.
Only the Boundary Supply Errant Daypack fits
Aer Lingus, Air Asia, Air Baltic, Air Canada, Air China, Air Macau, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Asiana Airlines, ATA Airlines, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Belavia, Biman Bangladesh, Blue Air, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Eastern, CommutAir, Delta Airlines, Dragonair, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Flair Air, flybe, Garuda Indonesia, Great Lakes Airlines, Hawaiian Airlines, Hong Kong Airlines, Icelandair, InselAir, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kulula, Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Oman Air, Pakistan International, Porter Airlines, Qantas Airways, Qatar Airways, Regional Express, Republic Airways, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, TUI, Turkish Airlines, Ukraine International, United Airlines, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Virgin Australia, Volotea, WestJet, Xiamen.
Boundary Supply Errant Daypack vs. Hynes Eagle 40L Flight Approved Compressible Carry: which should you pack?
The Hynes Eagle 40L Flight Approved Compressible Carry carries 18L more than the Boundary Supply Errant Daypack (22L vs. 40L), while the Hynes Eagle 40L Flight Approved Compressible Carry is the lighter pack at 1kg (vs. 1.4kg). For carry-on flexibility, the Boundary Supply Errant Daypack fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Hynes Eagle 40L Flight Approved Compressible Carry; if you want to travel lighter, the Hynes Eagle 40L Flight Approved Compressible Carry is the better call.