Patagonia Guidewater Backpack 29L vs. Ortlieb Packman Pro2

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

Patagonia Guidewater Backpack 29L

Front facing view of the Patagonia Guidewater Backpack 29L
Capacity29 L
Weight0.96 kg
Dimensions54×35×23 cm
Airline fit69%

Feature by feature

Patagonia Guidewater Backpack 29LFeatureOrtlieb Packman Pro2
Storage
N Compression Y
None Expanded Capacity None
4 Opening 2
N Passport N
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
Y Sternum Strap Y
Inside
N Laptop N
1 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Water Resistant Y
Material
00% recycled nylon plain weave Nylon fabric, PU coated

Ortlieb Packman Pro2

Front facing view of the Ortlieb Packman Pro2
Capacity25 L
Weight1 kg
Dimensions47×28×15 cm
Airline fit93%
Price$160

Key differences between the Patagonia Guidewater Backpack 29L and Ortlieb Packman Pro2

Both have: backpack straps, hip belt, sternum strap.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 130 accept both. 0 accept only the Patagonia Guidewater Backpack 29L, and 46 accept only the Ortlieb Packman Pro2.

Only the Ortlieb Packman Pro2 fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, Cayman Airways, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Great Lakes Airlines, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

Patagonia Guidewater Backpack 29L vs. Ortlieb Packman Pro2: which should you pack?

The Patagonia Guidewater Backpack 29L carries 4L more than the Ortlieb Packman Pro2 (29L vs. 25L), while the Patagonia Guidewater Backpack 29L is the lighter pack at 0.96kg (vs. 1kg). For carry-on flexibility, the Ortlieb Packman Pro2 fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Guidewater Backpack 29L; if you want to travel lighter, the Patagonia Guidewater Backpack 29L is the better call.