Patagonia Ascensionist Pack 55L vs. Exped Core 35

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

Patagonia Ascensionist Pack 55L

Front facing view of the Patagonia Ascensionist Pack 55L
Capacity55 L
Weight1.28 kg
Dimensions67×32×20 cm
Airline fit1%
Price$219

Feature by feature

Patagonia Ascensionist Pack 55LFeatureExped Core 35
Storage
removable Compression N
None Expanded Capacity None
0 Opening 3
N Passport N
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
removable 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
Y Water Resistant Y
Material
420-denier 100% recycled nylon ripstop, 0-denier 100% nylon ripstop1680 D Ballistic nylon, PU coated, 1'500 mm water column

Exped Core 35

Front facing view of the Exped Core 35
Capacity35 L
Weight0.1 kg
Dimensions62×30×23 cm
Airline fit13%
Price$137

Key differences between the Patagonia Ascensionist Pack 55L and Exped Core 35

Both have: backpack straps, hip belt, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 2 accept both. 0 accept only the Patagonia Ascensionist Pack 55L, and 22 accept only the Exped Core 35.

Only the Exped Core 35 fits

Adria Airways, Air Europa, Air Koryo, Air New Zealand, Air Tahiti Nui, Azul Linhas, China Southern, Cubana de Aviacion, Hainan Airlines, Island Air, Korean Air, Philippine Airlines, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, SpiceJet, TAAG Angola, TAM Airlines, Ural Airlines.

Patagonia Ascensionist Pack 55L vs. Exped Core 35: which should you pack?

The Patagonia Ascensionist Pack 55L carries 20L more than the Exped Core 35 (55L vs. 35L), while the Exped Core 35 is the lighter pack at 0.1kg (vs. 1.28kg). For carry-on flexibility, the Exped Core 35 fits 13% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Ascensionist Pack 55L; if you want to travel lighter, the Exped Core 35 is the better call.