---
url: "https://onebag.travel/compare/0eofye2243/cotopaxi-allpa-mini-20l-travel-pack/lgggqva3tj/aer-duffel-pack-2/"
title: "Cotopaxi Allpa Mini 20L Travel Pack vs Aer Duffel Pack 2"
description: "Cotopaxi Allpa Mini 20L Travel Pack vs Aer Duffel Pack 2: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/0eofye2243/cotopaxi-allpa-mini-20l-travel-pack/lgggqva3tj/aer-duffel-pack-2/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Cotopaxi Allpa Mini 20L Travel Pack vs. Aer Duffel Pack 2

# Cotopaxi Allpa Mini 20L Travel Pack vs. Aer Duffel Pack 2

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

## [Cotopaxi Allpa Mini 20L Travel Pack](https://onebag.travel/carryon/0eofye2243/cotopaxi-allpa-mini-20l-travel-pack/)

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

![Front facing view of the Cotopaxi Allpa Mini 20L Travel Pack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990348/carryons/cotopaxi-allpa-mini-20l-travel-pack-0eofye2243.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>0.6 kg</td></tr><tr><td>Dimensions</td><td>43×25×20 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$140</td></tr></tbody></table>

## Feature by feature

| Cotopaxi Allpa Mini 20L Travel Pack | Feature | Aer Duffel Pack 2 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 2 | Main Compartments | 3 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| side | Water Bottle Holder | 1 |
| N | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>100% recycled 840D TPU-coated nylon</td><td>900D eco-dyed polyester exterior</td></tr></tbody></table>

## [Aer Duffel Pack 2](https://onebag.travel/carryon/lgggqva3tj/aer-duffel-pack-2/)

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

![Front facing view of the Aer Duffel Pack 2](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1618225092/carryons/Aer_Duffel_Pack_2_wphfg9.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24.6 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>55×30×20 cm</td></tr><tr><td>Airline fit</td><td>86%</td></tr><tr><td>Price</td><td>$136</td></tr></tbody></table>

## Key differences between the Cotopaxi Allpa Mini 20L Travel Pack and Aer Duffel Pack 2

-   **Opening:** Clamshell on the Cotopaxi Allpa Mini 20L Travel Pack; Other on the Aer Duffel Pack 2.
-   **Main compartments:** 2 on the Cotopaxi Allpa Mini 20L Travel Pack; 3 on the Aer Duffel Pack 2.
-   **Water bottle pockets:** Side on the Cotopaxi Allpa Mini 20L Travel Pack; 1 on the Aer Duffel Pack 2.
-   **Water resistant:** No on the Cotopaxi Allpa Mini 20L Travel Pack; Yes on the Aer Duffel Pack 2.

Both have: backpack straps, sternum strap, laptop sleeve.

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

We checked both bags against the carry-on size limits of 189 airlines. 163 accept both. 18 accept only the Cotopaxi Allpa Mini 20L Travel Pack, and 0 accept only the Aer Duffel Pack 2.

### Only the Cotopaxi Allpa Mini 20L Travel Pack fits

Air Niugini, Air Tahiti, American Eagle, Belavia, easyJet, Etihad Airways, Great Lakes Airlines, Gulf Air, Liat Airlines, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Scoot, Tiger Airways, Virgin Australia, WestJet.

## Cotopaxi Allpa Mini 20L Travel Pack vs. Aer Duffel Pack 2: which should you pack?

The **Aer Duffel Pack 2** carries 4.600000000000001L more than the **Cotopaxi Allpa Mini 20L Travel Pack** (20L vs. 24.6L), while the **Cotopaxi Allpa Mini 20L Travel Pack** is the lighter pack at 0.6kg (vs. 1.1kg). For carry-on flexibility, the **Cotopaxi Allpa Mini 20L Travel Pack** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Duffel Pack 2; if you want to travel lighter, the Cotopaxi Allpa Mini 20L Travel Pack is the better call.