---
url: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/bnsytm0z9y/attitude-supply-atd1/"
title: "Cotopaxi Allpa 35L versus Attitude Supply ATD1 - One Bag Travel"
description: "Comparison of the Cotopaxi Allpa 35L and Attitude Supply ATD1 carry-on travel backpacks."
source: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/bnsytm0z9y/attitude-supply-atd1/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Cotopaxi Allpa 35L vs. Attitude Supply ATD1

# Cotopaxi Allpa 35L vs. Attitude Supply ATD1

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 | Attitude Supply ATD1 |
| --- | --- | --- |
| Storage |
| N | Compression | 4 |
| None | Expanded Capacity | 55L |
| 1 | Opening | 1 |
| front | Passport | front |
| Y | Passthrough | N |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 15in |
| 3 | Main Compartments | 2 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2, side |
| 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>500d, PU coated Cordura with DWR</td></tr></tbody></table>

## [Attitude Supply ATD1](https://onebag.travel/carryon/bnsytm0z9y/attitude-supply-atd1/)

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

![Front facing view of the Attitude Supply ATD1](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1600983132/carryons/attitude_baczuj.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>1.5 kg</td></tr><tr><td>Dimensions</td><td>50×30×26 cm</td></tr><tr><td>Airline fit</td><td>17%</td></tr><tr><td>Price</td><td>$447</td></tr></tbody></table>

Born out of the need for mobility, durability, and convenience, both the Cotopaxi Allpa 35L and the Attitude Supply ATD1 backpacks have carved out significant places in the carry-on luggage market. The Allpa 35L, originating from Cotopaxi, is a proper and sturdy backpack that nests the features of an urban and outdoorsy travel companion. Despite its 35-liter capacity, it impressively remains lightweight and sports 1680D ballistic nylon paneling for superior protection of your belongings. Gritty and versatile, its laptop compartment can comfortably accommodate a 15-inch laptop among other essentials.

On the other hand, we have the Attitude Supply ATD1. This generous carrier can be stretched to a capacity of 55 liters and cruises elegantly with a 500D, PU coated Cordura with DWR body. Proudly versatile, it notches up in compatibility, making it acceptable with 90% of airlines. Its laptop compartment is also up to par, fitting in a 15-inch laptop.

-   **Dimensions:** Cotopaxi Allpa 35L (20x30x51inches) vs Attitude Supply ATD1 (51x30x26inches)
-   **Weight:** Both weigh 1.5 pounds
-   **Volume:** Cotopaxi Allpa 35L (35L) vs Attitude Supply ATD1 (20L expandable to 55L)
-   **Airlines Compatibility:** Cotopaxi Allpa 35L (80% of airlines) vs Attitude Supply ATD1 (90% of airlines)
-   **Material:** Cotopaxi Allpa 35L (1680D ballistic nylon) vs Attitude Supply ATD1 (500D, PU coated Cordura with DWR)
-   **Laptop Compartment:** Both can fit a 15 inch laptop

Testimonies from users and reviewers paint a glowing picture of these storage savants. The Cotopaxi Allpa 35L is touted as notably comfortable, simplistic, and dependable, winning favor for its unassuming yet intuitive internal organization. It gauges as a perfect graduation gift and a companion for the budding world traveler.

The Attitude Supply ATD1 spins its magic in versatility, shifting easily from an everyday carry bag to a weekend companion to an outdoor bag. Its beautiful fusion of robust build quality with low-key urban styling and roll-top convenience stands out, making it a great choice for one-bag travelers. Inference thus leans toward the ATD1 as the more superior of the two, for its ability to satellite between travel and day-to-day use alike while thumbing up eye-catching design.