---
url: "https://onebag.travel/compare/dqwwr410qw/opposethis-ark-2020/odexfmh1ix/cotopaxi-nazca-24l/"
title: "OPPOSETHIS Ark - 2020 vs Cotopaxi Nazca 24L - One Bag Travel"
description: "OPPOSETHIS Ark - 2020 vs Cotopaxi Nazca 24L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/dqwwr410qw/opposethis-ark-2020/odexfmh1ix/cotopaxi-nazca-24l/"
---
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3.  OPPOSETHIS Ark - 2020 vs. Cotopaxi Nazca 24L

# OPPOSETHIS Ark - 2020 vs. Cotopaxi Nazca 24L

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

## [OPPOSETHIS Ark - 2020](https://onebag.travel/carryon/dqwwr410qw/opposethis-ark-2020/)

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

![Front facing view of the OPPOSETHIS Ark - 2020](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1630890827/carryons/OPPOSETHIS_Ark-2020_v6uwzg.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>0.95 kg</td></tr><tr><td>Dimensions</td><td>49×30×17 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$244</td></tr></tbody></table>

## Feature by feature

| OPPOSETHIS Ark - 2020 | Feature | Cotopaxi Nazca 24L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| N | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | N |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>800x600D lightweight waterproof nylon-polyester blend</td><td>630D nylon/cotton canvas</td></tr></tbody></table>

## [Cotopaxi Nazca 24L](https://onebag.travel/carryon/odexfmh1ix/cotopaxi-nazca-24l/)

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

![Front facing view of the Cotopaxi Nazca 24L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1619826301/carryons/Cotopaxi_Nazca_24L_wfx0x4.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24 L</td></tr><tr><td>Weight</td><td>1.33 kg</td></tr><tr><td>Dimensions</td><td>50×27×14 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$80</td></tr></tbody></table>

## Key differences between the OPPOSETHIS Ark - 2020 and Cotopaxi Nazca 24L

-   **Backpack straps:** No on the OPPOSETHIS Ark - 2020; Yes on the Cotopaxi Nazca 24L.
-   **Laptop sleeve:** 16in on the OPPOSETHIS Ark - 2020; 15in on the Cotopaxi Nazca 24L.
-   **Built-in organizer:** Yes on the OPPOSETHIS Ark - 2020; No on the Cotopaxi Nazca 24L.
-   **Water bottle pockets:** 1 on the OPPOSETHIS Ark - 2020; No on the Cotopaxi Nazca 24L.

Both have: sternum strap, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 173 accept both. 0 accept only the OPPOSETHIS Ark - 2020, and 1 accept only the Cotopaxi Nazca 24L.

### Only the Cotopaxi Nazca 24L fits

Great Lakes Airlines.

## OPPOSETHIS Ark - 2020 vs. Cotopaxi Nazca 24L: which should you pack?

The **OPPOSETHIS Ark - 2020** carries 1L more than the **Cotopaxi Nazca 24L** (25L vs. 24L), while the **OPPOSETHIS Ark - 2020** is the lighter pack at 0.95kg (vs. 1.33kg). For carry-on flexibility, the **OPPOSETHIS Ark - 2020** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the OPPOSETHIS Ark - 2020; if you want to travel lighter, the OPPOSETHIS Ark - 2020 is the better call.