---
url: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/69nfdrly0r/aer-fit-pack-3/"
title: "Cotopaxi Allpa 35L versus Aer Fit Pack 3 - One Bag Travel"
description: "Comparison of the Cotopaxi Allpa 35L and Aer Fit Pack 3 carry-on travel backpacks."
source: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/69nfdrly0r/aer-fit-pack-3/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Cotopaxi Allpa 35L vs. Aer Fit Pack 3

# Cotopaxi Allpa 35L vs. Aer Fit Pack 3

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

## [Cotopaxi Allpa 35L](https://onebag.travel/carryon/mcN0aY6G/cotopaxi-allpa-35l/)

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

![Front facing view of the Cotopaxi Allpa 35L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/an7zqlk8sro7sdinpykn)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>35 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>56×30×25 cm</td></tr><tr><td>Airline fit</td><td>26%</td></tr><tr><td>Price</td><td>$225</td></tr></tbody></table>

## Feature by feature

| Cotopaxi Allpa 35L | Feature | Aer Fit Pack 3 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 4 |
| front | Passport | Y |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 16in |
| 3 | Main Compartments | 1 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | optional |
| 1, side | Water Bottle Holder | 1 |
| Y | 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>1680D Cordura® ballistic nylon exterior</td></tr></tbody></table>

## [Aer Fit Pack 3](https://onebag.travel/carryon/69nfdrly0r/aer-fit-pack-3/)

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

![Front facing view of the Aer Fit Pack 3](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620127600/carryons/Aer_Fit_Pack_3_inpmfs.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>18.7 L</td></tr><tr><td>Weight</td><td>0 kg</td></tr><tr><td>Dimensions</td><td>44×32×20 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$145</td></tr></tbody></table>

While it's common to judge carry-on backpacks solely by their capacity, the Cotopaxi Allpa 35L and the Aer Fit Pack 3 demonstrate that it's about more than just volume. Sure, the Allpa boasts an impressive 35 liters of space compared to the Fit Pack 3's 18.7 liters. However, these bags show off different strengths through their design and features. The Allpa, for instance, has a rugged 1680D ballistic nylon panel, providing durability and robustness, while the Fit Pack's 1680D Cordura ballistic nylon exterior balances durability with a premium, smooth finish.

-   **Weight:** Cotopaxi Allpa 35L- 1.5 pounds vs Aer Fit Pack 3- 0 pounds
-   **Dimensions:** Cotopaxi Allpa 35L- 20"x30"x51" vs Aer Fit Pack 3- 20"x32"x44"
-   **Capacity:** Cotopaxi Allpa 35L- 35 liters vs Aer Fit Pack 3- 18.7 liters
-   **Compatibility with Airlines:** Cotopaxi Allpa 35L- 80% vs Aer Fit Pack 3- 83%
-   **Laptop Compartment:** Cotopaxi Allpa 35L- 15" laptop compatible vs Aer Fit Pack 3- 16" laptop compatible
-   **Material:** Cotopaxi Allpa 35L-1680D ballistic nylon vs Aer Fit Pack 3-1680D Cordura ballistic nylon

When it comes to the organization, the Cotopaxi Allpa 35L shines through. Reviewers consistently praise its intuitive and convenient internal organization. Whether you're a world traveler or an everyday commuter, the Allpa's multiple compartments can make your life easier. The Aer Fit Pack 3 also excels here but in a smaller package perfect for tech/gym goers. Its superior craftsmanship, smart organization system, and comfortable harness system make it a versatile option for daily use.

Finally, we can't overlook the extra features that bring value to these bags. The Allpa comes with a rain cover that offers added protection and security, not to mention the collapsible mesh laundry bag, a nylon shoe bag, and a mesh water bottle sleeve. For the Fit Pack, comfort is king. With a harness system that's received numerous compliments and the thoughtful balance between work and gym functionality, it's a tough contender to beat. Ultimately, both backpacks have a lot to offer. It simply comes down to your specific needs and preferences.