Patagonia Altvia Pack 36L vs. Osprey Atmos AG 65

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

Patagonia Altvia Pack 36L

Front facing view of the Patagonia Altvia Pack 36L
Capacity36 L
Weight0.992 kg
Dimensions60×31×27 cm
Airline fit3%
Price$179

Feature by feature

Patagonia Altvia Pack 36LFeatureOsprey Atmos AG 65
Storage
Y Compression Y
None Expanded Capacity None
0 Opening 0
N Passport
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
Y Sternum Strap removable
Inside
N Laptop N
1 Main Compartments 3
Organizer N
Outside
× Hard Shell ×
Y Rain-fly Y
2 Water Bottle Holder 2
Y Water Resistant Y
Material
140-denier 100% recycled nylon ripstop, 210-denier 100% recycled nylon ripstopNylon

Osprey Atmos AG 65

Front facing view of the Osprey Atmos AG 65
Capacity65 L
Weight2.2 kg
Dimensions87×41×39 cm
Airline fit0%
Price$269

Key differences between the Patagonia Altvia Pack 36L and Osprey Atmos AG 65

Both have: compression straps, backpack straps, hip belt, rain cover, water bottle pockets, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 0 accept both. 6 accept only the Patagonia Altvia Pack 36L, and 0 accept only the Osprey Atmos AG 65.

Only the Patagonia Altvia Pack 36L fits

Adria Airways, Air New Zealand, Azul Airlines, Island Air, Sun Country, Virgin America.

Patagonia Altvia Pack 36L vs. Osprey Atmos AG 65: which should you pack?

The Osprey Atmos AG 65 carries 29L more than the Patagonia Altvia Pack 36L (36L vs. 65L), while the Patagonia Altvia Pack 36L is the lighter pack at 0.992kg (vs. 2.2kg). For carry-on flexibility, the Patagonia Altvia Pack 36L fits 3% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Atmos AG 65; if you want to travel lighter, the Patagonia Altvia Pack 36L is the better call.