---
url: "https://onebag.travel/compare/ahyvuk1jes/attitude-supply-atd2-backpack/hm1d4bntl0/cabin-zero-classic-plus-42l/"
title: "Attitude Supply ATD2 Backpack vs Cabin Zero Classic Plus 42L"
description: "Attitude Supply ATD2 Backpack vs Cabin Zero Classic Plus 42L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/ahyvuk1jes/attitude-supply-atd2-backpack/hm1d4bntl0/cabin-zero-classic-plus-42l/"
---
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3.  Attitude Supply ATD2 Backpack vs. Cabin Zero Classic Plus 42L

# Attitude Supply ATD2 Backpack vs. Cabin Zero Classic Plus 42L

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

## [Attitude Supply ATD2 Backpack](https://onebag.travel/carryon/ahyvuk1jes/attitude-supply-atd2-backpack/)

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

![Front facing view of the Attitude Supply ATD2 Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990291/carryons/attitude-supply-atd2-backpack-ahyvuk1jes.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>1.3 kg</td></tr><tr><td>Dimensions</td><td>45×25×19 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$475</td></tr></tbody></table>

## Feature by feature

| Attitude Supply ATD2 Backpack | Feature | Cabin Zero Classic Plus 42L |
| --- | --- | --- |
| Storage |
| 4 | Compression | 4 |
| 31L | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry |
| removable | Backpack | hideable |
| removable | Hip Belt | N |
| removable | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 2 | Main Compartments | 2 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>Challenge Sailcloth Ecopak® EPLX600</td><td>600 Denier Polyester</td></tr></tbody></table>

## [Cabin Zero Classic Plus 42L](https://onebag.travel/carryon/hm1d4bntl0/cabin-zero-classic-plus-42l/)

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

![Front facing view of the Cabin Zero Classic Plus 42L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1621497488/carryons/Cabin_Zero_Plus_42L_fuzaua.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>42 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>54×35×20 cm</td></tr><tr><td>Airline fit</td><td>87%</td></tr><tr><td>Price</td><td>$122</td></tr></tbody></table>

## Key differences between the Attitude Supply ATD2 Backpack and Cabin Zero Classic Plus 42L

-   **Backpack straps:** Removable on the Attitude Supply ATD2 Backpack; Hideable on the Cabin Zero Classic Plus 42L.
-   **Hip belt:** Removable on the Attitude Supply ATD2 Backpack; No on the Cabin Zero Classic Plus 42L.
-   **Sternum strap:** Removable on the Attitude Supply ATD2 Backpack; Yes on the Cabin Zero Classic Plus 42L.
-   **Water bottle pockets:** 2, side on the Attitude Supply ATD2 Backpack; 1, side on the Cabin Zero Classic Plus 42L.

Both have: compression straps, passport pocket, luggage passthrough, laptop sleeve, built-in organizer, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 165 accept both. 16 accept only the Attitude Supply ATD2 Backpack, and 0 accept only the Cabin Zero Classic Plus 42L.

### Only the Attitude Supply ATD2 Backpack fits

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

## Attitude Supply ATD2 Backpack vs. Cabin Zero Classic Plus 42L: which should you pack?

The **Cabin Zero Classic Plus 42L** carries 24L more than the **Attitude Supply ATD2 Backpack** (18L vs. 42L), while the **Cabin Zero Classic Plus 42L** is the lighter pack at 1.2kg (vs. 1.3kg). For carry-on flexibility, the **Attitude Supply ATD2 Backpack** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cabin Zero Classic Plus 42L; if you want to travel lighter, the Cabin Zero Classic Plus 42L is the better call.