---
url: "https://onebag.travel/compare/4ur3vo1zzw/rei-co-op-ruckpack-18/okohae03di/cotopaxi-nazca-24l/"
title: "REI Co-op Ruckpack 18 vs Cotopaxi Nazca 24L (discontinued)"
description: "REI Co-op Ruckpack 18 vs Cotopaxi Nazca 24L (discontinued): capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/4ur3vo1zzw/rei-co-op-ruckpack-18/okohae03di/cotopaxi-nazca-24l/"
---
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3.  REI Co-op Ruckpack 18 vs. Cotopaxi Nazca 24L

# REI Co-op Ruckpack 18 vs. Cotopaxi Nazca 24L

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

## [REI Co-op Ruckpack 18](https://onebag.travel/carryon/4ur3vo1zzw/rei-co-op-ruckpack-18/)

![Front facing view of the REI Co-op Ruckpack 18](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601601381/carryons/reirutpack_nq5156.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>18 L</td></tr><tr><td>Weight</td><td>0.7 kg</td></tr><tr><td>Dimensions</td><td>44×26×18 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$65</td></tr></tbody></table>

## Feature by feature

| REI Co-op Ruckpack 18 | Feature | Cotopaxi Nazca 24L |
| --- | --- | --- |
| Storage |
|  | Compression |  |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| side | Passport | top |
| N | Passthrough | N |
| Carry |
|  | Backpack |  |
| removable | Hip Belt |  |
| removable | Sternum Strap |  |
| Inside |
| 15in | Laptop | 15in |
| 2 | Main Compartments | 3 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
|  | Water Bottle Holder |  |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>210-denier nylon ripstop</td><td>cotton/polyester canvas shell</td></tr></tbody></table>

## [Cotopaxi Nazca 24L](https://onebag.travel/carryon/okohae03di/cotopaxi-nazca-24l/)

![Front facing view of the Cotopaxi Nazca 24L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/btzropojpfaic1vbeiuu)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>51×27×14 cm</td></tr><tr><td>Airline fit</td><td>90%</td></tr><tr><td>Price</td><td>$140</td></tr></tbody></table>

## Key differences between the REI Co-op Ruckpack 18 and Cotopaxi Nazca 24L

-   **Passport pocket:** Side on the REI Co-op Ruckpack 18; Top on the Cotopaxi Nazca 24L.
-   **Main compartments:** 2 on the REI Co-op Ruckpack 18; 3 on the Cotopaxi Nazca 24L.
-   **Built-in organizer:** Yes on the REI Co-op Ruckpack 18; No on the Cotopaxi Nazca 24L.

Both have: laptop sleeve, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 170 accept both. 11 accept only the REI Co-op Ruckpack 18, and 0 accept only the Cotopaxi Nazca 24L.

### Only the REI Co-op Ruckpack 18 fits

Air Niugini, Air Tahiti, American Eagle, Belavia, easyJet, Etihad Airways, Gulf Air, Qatar Airways, Ravn Alaska, Regional Express, Virgin Australia.

## REI Co-op Ruckpack 18 vs. Cotopaxi Nazca 24L: which should you pack?

The **Cotopaxi Nazca 24L** carries 6L more than the **REI Co-op Ruckpack 18** (18L vs. 24L), while the **REI Co-op Ruckpack 18** is the lighter pack at 0.7kg (vs. 1.1kg). For carry-on flexibility, the **REI Co-op Ruckpack 18** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Nazca 24L; if you want to travel lighter, the REI Co-op Ruckpack 18 is the better call.