---
url: "https://onebag.travel/carryon/u9gebyvt58/attitude-supply-atd1-backpack/"
title: "Attitude Supply ATD1 Backpack Details - One Bag Travel"
description: "Reviews, airline compatibility, and specifications of the Attitude Supply ATD1 Backpack carry-on travel backpack."
source: "https://onebag.travel/carryon/u9gebyvt58/attitude-supply-atd1-backpack/"
---
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3.  Attitude Supply ATD1 Backpack

# Attitude Supply ATD1 Backpack

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

Capacity 23 L

Weight 1.7 kg 3.7 lbs

Dimensions 50×30×26 cm 19.7×11.8×10.2 in

Airline fit 17 % of airlines

![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)

**Deeper stats**



<table class="table table-sm table-borderless" id="carryon-details-table"><tbody><tr><td><span class="underline" title="Litres of capacity per unit of pack weight — higher means you carry more for less.">Capacity-to-weight</span></td><td><span class="metric-value">13.5 L/kg</span> <span class="imperial-value">6.2 L/lb</span></td><td><span class="badge badge-danger">Low</span></td></tr><tr><td><span class="underline" title="Total interior volume implied by the outer dimensions.">Cubic space</span></td><td><span class="metric-value">39 L</span> <span class="imperial-value">2371 in³</span></td><td></td></tr><tr><td><span class="underline" title="Gap between the bag's outer volume and its rated capacity — lower packs more efficiently.">Rated vs. shell</span></td><td><span class="metric-value">16 L</span><span class="imperial-value">16 L</span></td><td><span class="badge badge-danger">High</span></td></tr></tbody></table>

**Airline Compatibility**

✈️ 17% (32/189)

This bag is within the published carry-on limit of 17% of the 189 airlines that publish one.

[Link to Manufacturer](https://atdsupply.com/products/atd1-backpack-black)

## Features

<table class="table table-sm  table-borderless" id="carryon-details-table"><tbody><tr><td colspan="2" class="border-bottom"><strong>Storage</strong></td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a way to compress the contents to make them smaller?">Compression</span></td><td>4</td></tr><tr><td><span class="underline" title="If this carry-on expands, how much does it expand by?">Expanded Capacity</span></td><td><span>55L</span></td></tr><tr><td><span class="underline" title="The type of opening does this carry-on travel backpack have in degrees.">Opening</span></td><td>Clamshell</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a dedicated passport holder?">Passport</span></td><td>Front</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a pass-through opening so you can reach the main compartments without fully opening the bag?">Passthrough</span></td><td>No</td></tr><tr><td colspan="2" class="border-bottom"><strong>Carry</strong></td></tr><tr><td><span class="underline" title="Does this have backpack straps?">Backpack</span></td><td>Yes</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a belt that goes around your hip to help support the weight of the bag?">Hip Belt</span></td><td>Removable</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a strap that goes around your upper chest so help support the weight of the bag?">Sternum Strap</span></td><td>Removable</td></tr><tr><td colspan="2" class="border-bottom"><strong>Inside</strong></td></tr><tr><td><span class="underline" title="What size laptop sleeve can this carry-on travel backpack fit?">Laptop</span></td><td>16in</td></tr><tr><td><span class="underline" title="The number of main compartments this bag has.  Side and small compartments don't count.">Main Compartments</span></td><td>2</td></tr><tr><td><span class="underline" title="Does the main compartment of the carry-on travel backpack have features which help you organize?">Organizer</span></td><td>Yes</td></tr><tr><td colspan="2" class="border-bottom"><strong>Outside</strong></td></tr><tr><td><span class="underline" title="Does the backpack have a hardshell component to protect your packed items?">Hard Shell</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry on have a rain-fly to protect it from the weather?">Rain-fly</span></td><td>No</td></tr><tr><td><span class="underline" title="The number of bottle holders this bag has">Water Bottle Holder</span></td><td>2 (side)</td></tr><tr><td><span class="underline" title="Is this carry-on travel backpack made with water resistant material?">Water Resistant</span></td><td>Yes</td></tr><tr><td colspan="2"><span class="underline" title="What type of material is this carry-on travel backpack made of?"><strong>Material:</strong></span><br>Challenge Sailcloth Ecopak® EPLX600</td></tr></tbody></table>

## Fits the carry-on limits of 32 airlines

Adria Airways Air Europa Air Koryo Air New Zealand Air Tahiti Nui Azul Airlines Azul Linhas Caribbean Airlines China Southern Copa Airlines Croatia Air Cubana de Aviacion Frontier Airlines Hainan Airlines Island Air Korean Air PenAir Philippine Airlines Royal Air Morocco Saudi Arabian Airlines Sichuan Airlines SilkAir Silver Airways Singapore Airlines Southwest Airlines SpiceJet Spirit Airlines Sun Country TAAG Angola TAM Airlines Ural Airlines Virgin America

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