Patagonia Black Hole MLC Wheeled Duffel 34L vs. Patagonia Black Hole® Duffel 40L

Two carry-on travel backpacks, compared spec for spec.

Patagonia Black Hole MLC Wheeled Duffel 34L

Capacity34 L
Weight2.9 kg
Dimensions52×33×20 cm
Airline fit88%
Price$360

Feature by feature

Patagonia Black Hole MLC Wheeled Duffel 34LFeaturePatagonia Black Hole® Duffel 40L
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
front Passport side
N Passthrough Y
Carry
hideable Backpack removable
N Hip Belt N
removable Sternum Strap Y
Inside
N 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
8.7-oz 300-denier 100% postconsumer recycled polyester ripstop with a postindustrial recycled TPU-film laminate100% recycled polyester ripstop with a matte, recycled TPU-film laminate

Patagonia Black Hole® Duffel 40L

Front facing view of the Patagonia Black Hole® Duffel 40L
Capacity40 L
Weight1 kg
Dimensions50×32×22 cm
Airline fit72%
Price$160

Key differences between the Patagonia Black Hole MLC Wheeled Duffel 34L and Patagonia Black Hole® Duffel 40L

Both have: water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 133 accept both. 34 accept only the Patagonia Black Hole MLC Wheeled Duffel 34L, and 4 accept only the Patagonia Black Hole® Duffel 40L.

Only the Patagonia Black Hole MLC Wheeled Duffel 34L fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, 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.

Only the Patagonia Black Hole® Duffel 40L fits

Etihad Airways, Oman Air, Qatar Airways, Royal Jordanian.

Patagonia Black Hole MLC Wheeled Duffel 34L vs. Patagonia Black Hole® Duffel 40L: which should you pack?

The Patagonia Black Hole® Duffel 40L carries 6L more than the Patagonia Black Hole MLC Wheeled Duffel 34L (34L vs. 40L), while the Patagonia Black Hole® Duffel 40L is the lighter pack at 1kg (vs. 2.9kg). For carry-on flexibility, the Patagonia Black Hole MLC Wheeled Duffel 34L fits 88% 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.