The Brown Buffalo Conceal Pack 21L vs. Patagonia Black Hole® Duffel 40L
Two carry-on travel backpacks, compared spec for spec.
The Brown Buffalo Conceal Pack 21L
| Capacity | 21 L |
| Weight | 1.3 kg |
| Dimensions | 50×30×15 cm |
| Airline fit | 92% |
| Price | $325 |
Feature by feature
| The Brown Buffalo Conceal Pack 21L | Feature | Patagonia Black Hole® Duffel 40L |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | side |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | removable |
| N | Hip Belt | N |
| removable | Sternum Strap | Y |
| Inside | ||
| 15in | Laptop | N |
| 2 | Main Compartments | 2 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| Challenge® Sailcloth EPX400 | 100% recycled polyester ripstop with a matte, recycled TPU-film laminate |
Patagonia Black Hole® Duffel 40L
| Capacity | 40 L |
| Weight | 1 kg |
| Dimensions | 50×32×22 cm |
| Airline fit | 72% |
| Price | $160 |
Key differences between the The Brown Buffalo Conceal Pack 21L and Patagonia Black Hole® Duffel 40L
- Passport pocket: Front on the The Brown Buffalo Conceal Pack 21L; Side on the Patagonia Black Hole® Duffel 40L.
- Backpack straps: Yes on the The Brown Buffalo Conceal Pack 21L; Removable on the Patagonia Black Hole® Duffel 40L.
- Sternum strap: Removable on the The Brown Buffalo Conceal Pack 21L; Yes on the Patagonia Black Hole® Duffel 40L.
- Laptop sleeve: 15in on the The Brown Buffalo Conceal Pack 21L; No on the Patagonia Black Hole® Duffel 40L.
Both have: luggage passthrough, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 137 accept both. 36 accept only the The Brown Buffalo Conceal Pack 21L, and 0 accept only the Patagonia Black Hole® Duffel 40L.
Only the The Brown Buffalo Conceal Pack 21L fits
Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, 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, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.
The Brown Buffalo Conceal Pack 21L vs. Patagonia Black Hole® Duffel 40L: which should you pack?
The Patagonia Black Hole® Duffel 40L carries 19L more than the The Brown Buffalo Conceal Pack 21L (21L vs. 40L), while the Patagonia Black Hole® Duffel 40L is the lighter pack at 1kg (vs. 1.3kg). For carry-on flexibility, the The Brown Buffalo Conceal Pack 21L fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Black Hole® Duffel 40L; if you want to travel lighter, the Patagonia Black Hole® Duffel 40L is the better call.