---
url: "https://onebag.travel/compare/20su8gi2ui/patagonia-ascensionist-pack-35l/nvxvhyiyq0/ortlieb-atrack-bp/"
title: "Patagonia Ascensionist Pack 35L vs Ortlieb Atrack BP"
description: "Patagonia Ascensionist Pack 35L vs Ortlieb Atrack BP: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/20su8gi2ui/patagonia-ascensionist-pack-35l/nvxvhyiyq0/ortlieb-atrack-bp/"
---
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3.  Patagonia Ascensionist Pack 35L vs. Ortlieb Atrack BP

# Patagonia Ascensionist Pack 35L vs. Ortlieb Atrack BP

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

## [Patagonia Ascensionist Pack 35L](https://onebag.travel/carryon/20su8gi2ui/patagonia-ascensionist-pack-35l/)

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

![Front facing view of the Patagonia Ascensionist Pack 35L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1633485761/carryons/Ascensionist_Alpine_Pack_35_r24jyt.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>35 L</td></tr><tr><td>Weight</td><td>0.89 kg</td></tr><tr><td>Dimensions</td><td>65×31×14 cm</td></tr><tr><td>Airline fit</td><td>13%</td></tr><tr><td>Price</td><td>$179</td></tr></tbody></table>

## Feature by feature

| Patagonia Ascensionist Pack 35L | Feature | Ortlieb Atrack BP |
| --- | --- | --- |
| Storage |
| removable | Compression | Y |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| removable | Sternum Strap | Y |
| Inside |
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| N | 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>420-denier 100% recycled nylon ripstop, 70-denier 100% nylon ripstop</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>

## Key differences between the Patagonia Ascensionist Pack 35L and Ortlieb Atrack BP

-   **Compression straps:** Removable on the Patagonia Ascensionist Pack 35L; Yes on the Ortlieb Atrack BP.
-   **Sternum strap:** Removable on the Patagonia Ascensionist Pack 35L; Yes on the Ortlieb Atrack BP.
-   **Water bottle pockets:** No on the Patagonia Ascensionist Pack 35L; 2 on the Ortlieb Atrack BP.

Both have: backpack straps, hip belt, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 25 accept both. 0 accept only the Patagonia Ascensionist Pack 35L, and 26 accept only the Ortlieb Atrack BP.

### Only the Ortlieb Atrack BP fits

Aegean Airlines, Air Astana, Air Nostrum, Atlas Global, British Airways, Conviasa, Copa Airlines, EL AL, Finnair, Frontier Airlines, Great Lakes Airlines, Iran Aseman Air, Island Air, Jet2, Kuwait Air, Middle East Airlines, Monarch Airlines, Onur Air, PenAir, Southwest Airlines, Spirit Airlines, Sun Country, Thai Airways, Travel Service Airlines, Uzbekistan Air, WOW Airlines.

## Patagonia Ascensionist Pack 35L vs. Ortlieb Atrack BP: which should you pack?

The **Patagonia Ascensionist Pack 35L** carries 10L more than the **Ortlieb Atrack BP** (35L vs. 25L), while the **Patagonia Ascensionist Pack 35L** is the lighter pack at 0.89kg (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 Ascensionist Pack 35L; if you want to travel lighter, the Patagonia Ascensionist Pack 35L is the better call.