---
url: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/3599pg1ucq/osprey-ozone-duplex-65l/"
title: "Cotopaxi Allpa 35L versus Osprey Ozone Duplex 65L - One Bag Travel"
description: "Comparison of the Cotopaxi Allpa 35L and Osprey Ozone Duplex 65L carry-on travel backpacks."
source: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/3599pg1ucq/osprey-ozone-duplex-65l/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Cotopaxi Allpa 35L vs. Osprey Ozone Duplex 65L

# Cotopaxi Allpa 35L vs. Osprey Ozone Duplex 65L

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 | Osprey Ozone Duplex 65L |
| --- | --- | --- |
| Storage |
| N | Compression | Y |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| front | Passport | Y |
| Y | Passthrough | N |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 3 | Main Compartments | 0 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2 |
| 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>210D Nylon Honey Comb Contrast Thread, 450D Packcloth</td></tr></tbody></table>

## [Osprey Ozone Duplex 65L](https://onebag.travel/carryon/3599pg1ucq/osprey-ozone-duplex-65l/)

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

![Front facing view of the Osprey Ozone Duplex 65L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1617189128/carryons/Osprey_Ozone_Duplex_65_n4nnky.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>65 L</td></tr><tr><td>Weight</td><td>1.9 kg</td></tr><tr><td>Dimensions</td><td>54×35×23 cm</td></tr><tr><td>Airline fit</td><td>69%</td></tr><tr><td>Price</td><td>$120</td></tr></tbody></table>

The Cotopaxi Allpa 35L and the Osprey Ozone Duplex 65L are both formidable contenders in the world of carry-on backpacks. The Cotopaxi Allpa 35L is a versatile piece, with its 1680D ballistic nylon paneling lending it durability, while offering 35 liters capacity. This Allpa series is praised for its intuitive design, making it a smart pick for both the urban and intrepid travelers. It also scores in terms of compatibility, as it meets the requirements of 80% of the airlines.

In comparison, the Osprey Ozone Duplex 65L, with its larger dimension and weight, provides more storage (65 liters capacity). Made of 210D Nylon Honey Comb and 450D Packcloth, it's built for heavy-duty use. This Osprey model too has a well-planned organization system, making it efficient in handling both big and small items. However, this one falls slightly short in terms of compatibility, with it being suitable for 64% of airlines.

To summarize the difference:

-   Size: Cotopaxi Allpa 35L is 20" tall, 30" wide, and 51" deep. Osprey Ozone Duplex 65L sized 23" x 35" x 54".
-   Weight: Cotopaxi 1.5 lbs. Osprey 1.9 lbs.
-   Capacity: Cotopaxi has a 35 litres. Osprey comes with a 65 litres capacity.
-   Material: Cotopaxi is made of 1680D ballistic nylon. Osprey uses 210D Nylon Honey Comb and 450D Packcloth.
-   Airline Compatibility: Cotopaxi fits with 80% of airlines. Osprey fits with 64% of airlines.

From both, Cotopaxi stands a better chance of being accepted as a carry-on while offering a durable built and smart internal organization. It comes with a mesh laundry bag, shoe bag, and water bottle sleeve, providing additional utility value.

On the other hand, Osprey Ozone's higher capacity, quality craftsmanship, and the convenience of a detachable cargo bag seem to offer more benefits for those who don't mind the risk of checking their bag. Reviewers commend it for its intelligent design and exceptional practical application, making it a worthy investment for global travelers.