Patagonia Altvia Pack 36L vs. Ortlieb Atrack BP

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 36LFeatureOrtlieb Atrack BP
Storage
Y Compression Y
None Expanded Capacity None
0 Opening 0
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
Organizer N
Outside
× Hard Shell ×
Y Rain-fly N
2 Water Bottle Holder 2
Y Water Resistant Y
Material
140-denier 100% recycled nylon ripstop, 210-denier 100% recycled nylon ripstopPS21R

Ortlieb Atrack BP

Front facing view of the Ortlieb Atrack BP
Capacity25 L
Weight1.3 kg
Dimensions56×26×25 cm
Airline fit27%
Price$250

Key differences between the Patagonia Altvia Pack 36L and Ortlieb Atrack BP

Both have: compression straps, backpack straps, hip belt, sternum strap, 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. 6 accept both. 0 accept only the Patagonia Altvia Pack 36L, and 45 accept only the Ortlieb Atrack BP.

Only the Ortlieb Atrack BP fits

Aegean Airlines, Air Astana, Air Europa, Air Koryo, Air Nostrum, Air Tahiti Nui, Atlas Global, Azul Linhas, British Airways, Caribbean Airlines, China Southern, Conviasa, Copa Airlines, Croatia Air, Cubana de Aviacion, EL AL, Finnair, Frontier Airlines, Great Lakes Airlines, Hainan Airlines, Iran Aseman Air, Jet2, Korean Air, Kuwait Air, Middle East Airlines, Monarch Airlines, Onur Air, PenAir, Philippine Airlines, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Southwest Airlines, SpiceJet, Spirit Airlines, TAAG Angola, TAM Airlines, Thai Airways, Travel Service Airlines, Ural Airlines, Uzbekistan Air, WOW Airlines.

Patagonia Altvia Pack 36L vs. Ortlieb Atrack BP: which should you pack?

The Patagonia Altvia Pack 36L carries 11L more than the Ortlieb Atrack BP (36L vs. 25L), while the Patagonia Altvia Pack 36L is the lighter pack at 0.992kg (vs. 1.3kg). For carry-on flexibility, the Ortlieb Atrack BP fits 27% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Altvia Pack 36L; if you want to travel lighter, the Patagonia Altvia Pack 36L is the better call.