---
url: "https://onebag.travel/compare/02bc32de-b553-463a-a455-177400d5423d/osprey-porter-46/nvxvhyiyq0/ortlieb-atrack-bp/"
title: "Osprey Porter 46 versus Ortlieb Atrack BP - One Bag Travel"
description: "Comparison of the Osprey Porter 46 and Ortlieb Atrack BP carry-on travel backpacks."
source: "https://onebag.travel/compare/02bc32de-b553-463a-a455-177400d5423d/osprey-porter-46/nvxvhyiyq0/ortlieb-atrack-bp/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Osprey Porter 46 vs. Ortlieb Atrack BP

# Osprey Porter 46 vs. Ortlieb Atrack BP

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

## [Osprey Porter 46](https://onebag.travel/carryon/02bc32de-b553-463a-a455-177400d5423d/osprey-porter-46/)

by [Osprey](https://onebag.travel/carryons/?brands=Osprey)

![Front facing view of the Osprey Porter 46](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/bus8myci54gl3byfegrn)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>46 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>55×36×23 cm</td></tr><tr><td>Airline fit</td><td>61%</td></tr><tr><td>Price</td><td>$185</td></tr></tbody></table>

## Feature by feature

| Osprey Porter 46 | Feature | Ortlieb Atrack BP |
| --- | --- | --- |
| Storage |
| 2 | Compression | Y |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| top | Passport | N |
| Y | Passthrough | N |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | N |
| 4 | Main Compartments | 1 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>bluesign®-approved Recycled 500D Nylon Packcloth PFC Free DWR</td><td>PS21R</td></tr></tbody></table>

## [Ortlieb Atrack BP](https://onebag.travel/carryon/nvxvhyiyq0/ortlieb-atrack-bp/)

by [Ortlieb](https://onebag.travel/carryons/?brands=Ortlieb)

![Front facing view of the Ortlieb Atrack BP](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1630938216/carryons/Atrack_BP_c8wk5x.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>25 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>56×26×25 cm</td></tr><tr><td>Airline fit</td><td>27%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

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:

-   The Osprey Porter 46 is broader and has almost double the capacity than the Ortlieb Atrack BP.
-   The Ortlieb Atrack BP, however, is lighter and stands taller than the Osprey Porter 46.
-   The Osprey Porter 46 can safely store a 1-inch laptop, an option not available in the Ortlieb Atrack BP.
-   The Osprey Porter 46 is compatible with more airlines than the Ortlieb Atrack BP.
-   The Ortlieb Atrack BP is built for outdoor adventures specifically geared towards bikepacking, a niche not targeted by the Osprey Porter 46.

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.