Osprey Porter 46 vs. Ortlieb Atrack BP

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

Osprey Porter 46

Front facing view of the Osprey Porter 46
Capacity46 L
Weight1.5 kg
Dimensions56×36×23 cm
Airline fit47%
Price$150

Feature by feature

Osprey Porter 46FeatureOrtlieb Atrack BP
Storage
S Compression S
None Expanded Capacity None
4 Opening 0
N Passport N
N Passthrough N
Carry
H Backpack S
H Hip Belt S
H Sternum Strap S
Inside
1 Laptop 0
3 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
0 Water Bottle Holder 2
Y Water Resistant Y
Material
NylonPS21R

Ortlieb Atrack BP

Front facing view of the Ortlieb Atrack BP
Capacity25 L
Weight1.3 kg
Dimensions56×26×25 cm
Airline fit38%
Price$250

If you're constantly fighting with limited luggage space then the Osprey Porter 46 is a backpack you should seriously consider. It offers an impressive 46 liters of capacity and it's been rated to be compatible with up to 47% of airlines. The capaciousness, combined with a durable nylon construction, means this backpack is capable of handling heavy loads. Plus, it comes with a laptop compartment designed to fit a 1-inch laptop. Testimonials from users tout this backpack as a "durable option for those who tend to carry more" and commend its "great organization" and "smart features."

In comparison, the Ortlieb Atrack BP, made from PS21R, is a sturdy and waterproof backpack that stands a bit taller but narrower. It holds 25 liters of gear while weighing slightly less at 1.3 pounds and is compatible with around 38% of airlines. While its capacity may seem shy in comparison to the Osprey, the Atrack BP has a focused speciality. Designed with cyclists in mind, it has a bikepacking/adventure travel focused purpose. Reviewers commend it for its "rugged" character, "comfort", and "extremely well-thought-out ventilation".

Both backpacks offer unique perks. Compared in bullet points:

In summary, both the Osprey Porter 46 and the Ortlieb Atrack BP cater to different needs. If you're someone who values capacity and versatility, you cannot go wrong with the Osprey Porter 46. However, if your pursuits demand a slimmer, robust pack designed for biking adventures, the Ortlieb Atrack BP can rise to the occasion seamlessly. Personal preference, largely based on intended use, will guide the final choice. Both these backpacks deliver in their distinct domains, bringing comfort, durability, and usability to the forefront.