Ortlieb Atrack BP vs. Osprey Atmos AG 65

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

Ortlieb Atrack BP

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

Feature by feature

Ortlieb Atrack BPFeatureOsprey 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
N Organizer N
Outside
× Hard Shell ×
N Rain-fly Y
2 Water Bottle Holder 2
Y Water Resistant Y
Material
PS21R Nylon

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 Ortlieb Atrack BP and Osprey Atmos AG 65

Both have: compression straps, backpack straps, hip belt, 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. 51 accept only the Ortlieb Atrack BP, and 0 accept only the Osprey Atmos AG 65.

Only the Ortlieb Atrack BP fits

Adria Airways, Aegean Airlines, Air Astana, Air Europa, Air Koryo, Air New Zealand, Air Nostrum, Air Tahiti Nui, Atlas Global, Azul Airlines, 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, Island 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, Sun Country, TAAG Angola, TAM Airlines, Thai Airways, Travel Service Airlines, Ural Airlines, Uzbekistan Air, Virgin America, WOW Airlines.

Ortlieb Atrack BP vs. Osprey Atmos AG 65: which should you pack?

The Osprey Atmos AG 65 carries 40L more than the Ortlieb Atrack BP (25L vs. 65L), while the Ortlieb Atrack BP is the lighter pack at 1.3kg (vs. 2.2kg). 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 Osprey Atmos AG 65; if you want to travel lighter, the Ortlieb Atrack BP is the better call.