---
url: "https://onebag.travel/carryon/wnfolw37xn/ortlieb-atrack-st/"
title: "Ortlieb Atrack ST Details - One Bag Travel"
description: "Reviews, airline compatibility, and specifications of the Ortlieb Atrack ST carry-on travel backpack."
source: "https://onebag.travel/carryon/wnfolw37xn/ortlieb-atrack-st/"
---
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3.  Ortlieb Atrack ST

# Ortlieb Atrack ST

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

Capacity 25 L

Weight 1.41 kg 3.1 lbs

Dimensions 56×26×25 cm 23×11×10 in

Airline fit 27 % of airlines

![Front facing view of the Ortlieb Atrack ST](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1630938166/carryons/Atrack_ST_kabren.webp)

**Deeper stats**



<table class="table table-sm table-borderless" id="carryon-details-table"><tbody><tr><td><span class="underline" title="Litres of capacity per unit of pack weight — higher means you carry more for less.">Capacity-to-weight</span></td><td><span class="metric-value">17.7 L/kg</span> <span class="imperial-value">8.1 L/lb</span></td><td><span class="badge badge-danger">Low</span></td></tr><tr><td><span class="underline" title="Total interior volume implied by the outer dimensions.">Cubic space</span></td><td><span class="metric-value">36.4 L</span> <span class="imperial-value">2530 in³</span></td><td></td></tr><tr><td><span class="underline" title="Gap between the bag's outer volume and its rated capacity — lower packs more efficiently.">Rated vs. shell</span></td><td><span class="metric-value">11 L</span><span class="imperial-value">11 L</span></td><td><span class="badge badge-danger">High</span></td></tr></tbody></table>

**Airline Compatibility**

✈️ 27% (51/189)

This bag is within the published carry-on limit of 27% of the 189 airlines that publish one.

[Link to Manufacturer](https://www.ortlieb.com/en_us/atrack-st+R7034)

## Our verdict

### Reasons to buy

-   This bag suits people with shorter torsos better.
-   Available in 34L should your adventure needs more space for your things.
-   Boasts a weatherproof construction that would protect your things whatever the weather throws at you.
-   Has multiple attachment points for outdoor gears and lots of optional add-ons to increase the functionality of this pack.

### Things to consider

-   The zippers are "sticky" but that's because of their waterproofing properties.
-   Some users stated that the pack is more comfortable to use when fully packed than lightly packed.

## What reviewers said

-   "A good backpack for someone who likes to bustle outdoors. Sufficient adjustment resources, in addition, with the bracket kit purchased as an accessory, scrap can be caught on the outside of the backpack. The backpack contains four pockets for goods and one adjustable packing strap that goes across the entire backpack. Pros of waterproofing, zipper location, and the ability to use a drinking bladder."
-   "This bag perfectly meets all my expectations, we assume a high quality of this product. Once on your back, you don't feel it at all. Can't wait to test it in a little more extreme situations."
-   "This is an exceptionally good pack. I needed a pack that could carry a lot of heavy camera gear. I've never found a dedicated camera backpack that is comfortable enough. The Ortlieb Atrack 35L has an excellent harness system. It adjusts well to different torso lengths. The hip belt is comfortable and takes the load. I appreciate the simplicity of this pack. It has one large area for all your stuff, and you access it easily from the rear. The four inner zippered pockets are useful for small items, but they won't take anything bulky because of the way the pack closes up tightly. Of course, a huge benefit of this pack is that it's waterproof. I can lay it down on the wet ground while I'm working, and I don't have to worry about rain or carrying a special rain cover. This is the pack I've been looking for. Highly recommended."

## Reviews from around the web

**Ortlieb ATrack ST Backpack | Review**
[outdoorsmagic.com](https://outdoorsmagic.com/article/ortlieb-atrack-st-backpack-review/)

> In wet weather it’s been right up to the task and shrugged off any heavy downpours. I’d certainly be confident in this withstanding submersion so long as you’ve been careful to do the zip up properly. You can see that the materials are all excellent quality, as is the design overall.

**Ortlieb Atrack ST 34L Backpack Review**
[www.feedthehabit.com](https://www.feedthehabit.com/gear-reviews/ortlieb-atrack-st-25l-backpack-review/)

> All in all, the Atrack ST is a well-developed, intuitive pack. It carefully integrates all the aspects that I love about travel-specific bags, like easy access and a design that inhibits theft (such as the zipper being on the frame-side of the bag). I was blown away by the comfortable suspension, easy-access, and customization options for the Otrlieb Atrack ST. This is a pack that I’ll certainly be reaching for in any adventure context — whether that takes me on an airplane, to the crag, or both.

## Features

<table class="table table-sm  table-borderless" id="carryon-details-table"><tbody><tr><td colspan="2" class="border-bottom"><strong>Storage</strong></td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a way to compress the contents to make them smaller?">Compression</span></td><td>Yes</td></tr><tr><td><span class="underline" title="If this carry-on expands, how much does it expand by?">Expanded Capacity</span></td><td><span>None</span></td></tr><tr><td><span class="underline" title="The type of opening does this carry-on travel backpack have in degrees.">Opening</span></td><td>TopZip</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a dedicated passport holder?">Passport</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a pass-through opening so you can reach the main compartments without fully opening the bag?">Passthrough</span></td><td>No</td></tr><tr><td colspan="2" class="border-bottom"><strong>Carry</strong></td></tr><tr><td><span class="underline" title="Does this have backpack straps?">Backpack</span></td><td>Yes</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a belt that goes around your hip to help support the weight of the bag?">Hip Belt</span></td><td>Yes</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a strap that goes around your upper chest so help support the weight of the bag?">Sternum Strap</span></td><td>Yes</td></tr><tr><td colspan="2" class="border-bottom"><strong>Inside</strong></td></tr><tr><td><span class="underline" title="What size laptop sleeve can this carry-on travel backpack fit?">Laptop</span></td><td>No</td></tr><tr><td><span class="underline" title="The number of main compartments this bag has.  Side and small compartments don't count.">Main Compartments</span></td><td>1</td></tr><tr><td><span class="underline" title="Does the main compartment of the carry-on travel backpack have features which help you organize?">Organizer</span></td><td>—</td></tr><tr><td colspan="2" class="border-bottom"><strong>Outside</strong></td></tr><tr><td><span class="underline" title="Does the backpack have a hardshell component to protect your packed items?">Hard Shell</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry on have a rain-fly to protect it from the weather?">Rain-fly</span></td><td>No</td></tr><tr><td><span class="underline" title="The number of bottle holders this bag has">Water Bottle Holder</span></td><td>2</td></tr><tr><td><span class="underline" title="Is this carry-on travel backpack made with water resistant material?">Water Resistant</span></td><td>Yes</td></tr><tr><td colspan="2"><span class="underline" title="What type of material is this carry-on travel backpack made of?"><strong>Material:</strong></span><br>PS33</td></tr></tbody></table>

## Fits the carry-on limits of 51 airlines

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

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These backpacks are related to the Ortlieb Atrack ST:

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25L 1.43kg 47% fit

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