---
url: "https://onebag.travel/compare/p9kpxe6xqm/matador-seg28-backpack/u9gebyvt58/attitude-supply-atd1-backpack/"
title: "Matador SEG28 Backpack vs Attitude Supply ATD1 Backpack"
description: "Matador SEG28 Backpack vs Attitude Supply ATD1 Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/p9kpxe6xqm/matador-seg28-backpack/u9gebyvt58/attitude-supply-atd1-backpack/"
---
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3.  Matador SEG28 Backpack vs. Attitude Supply ATD1 Backpack

# Matador SEG28 Backpack vs. Attitude Supply ATD1 Backpack

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

## [Matador SEG28 Backpack](https://onebag.travel/carryon/p9kpxe6xqm/matador-seg28-backpack/)

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

![Front facing view of the Matador SEG28 Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990382/carryons/matador-seg28-backpack-p9kpxe6xqm.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>28 L</td></tr><tr><td>Weight</td><td>1 kg</td></tr><tr><td>Dimensions</td><td>51×30×24 cm</td></tr><tr><td>Airline fit</td><td>40%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Feature by feature

| Matador SEG28 Backpack | Feature | Attitude Supply ATD1 Backpack |
| --- | --- | --- |
| Storage |
| 4 | Compression | 4 |
| None | Expanded Capacity | 55L |
| 1 | Opening | 1 |
| top | Passport | front |
| Y | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| 16in | Laptop | 16in |
| 8 | 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>420D Bluesign® nylon UHMWPE</td><td>Challenge Sailcloth Ecopak® EPLX600</td></tr></tbody></table>

## [Attitude Supply ATD1 Backpack](https://onebag.travel/carryon/u9gebyvt58/attitude-supply-atd1-backpack/)

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

![Front facing view of the Attitude Supply ATD1 Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990472/carryons/attitude-supply-atd1-backpack-u9gebyvt58.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>23 L</td></tr><tr><td>Weight</td><td>1.7 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>$523</td></tr></tbody></table>

## Key differences between the Matador SEG28 Backpack and Attitude Supply ATD1 Backpack

-   **Passport pocket:** Top on the Matador SEG28 Backpack; Front on the Attitude Supply ATD1 Backpack.
-   **Luggage passthrough:** Yes on the Matador SEG28 Backpack; No on the Attitude Supply ATD1 Backpack.
-   **Main compartments:** 8 on the Matador SEG28 Backpack; 2 on the Attitude Supply ATD1 Backpack.
-   **Water bottle pockets:** 1, side on the Matador SEG28 Backpack; 2, side on the Attitude Supply ATD1 Backpack.

Both have: compression straps, backpack straps, hip belt, sternum strap, 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. 32 accept both. 43 accept only the Matador SEG28 Backpack, and 0 accept only the Attitude Supply ATD1 Backpack.

### Only the Matador SEG28 Backpack fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Astana, Air Caraibes, Air France, Air India, Air Mauritius, Air Nostrum, All Nipon Airways, ANA, Atlas Global, Boliviana de Aviacion, British Airways, Conviasa, Czech Airlines, EL AL, Finnair, Gol Linhas Aereas, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, Kenya Airways, KLM, Kuwait Air, LATAM , Middle East Airlines, Monarch Airlines, Oman Air, Onur Air, Peach, Sky Airlines, Thai Airways, Travel Service Airlines, Uzbekistan Air, WOW Airlines.

## Matador SEG28 Backpack vs. Attitude Supply ATD1 Backpack: which should you pack?

The **Matador SEG28 Backpack** carries 5L more than the **Attitude Supply ATD1 Backpack** (28L vs. 23L), while the **Matador SEG28 Backpack** is the lighter pack at 1kg (vs. 1.7kg). For carry-on flexibility, the **Matador SEG28 Backpack** fits 40% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Matador SEG28 Backpack; if you want to travel lighter, the Matador SEG28 Backpack is the better call.