---
url: "https://onebag.travel/compare/3p8dg0j5ir/alpha-one-niner-evade-1-5-backpack/bnsytm0z9y/attitude-supply-atd1/"
title: "Alpha One-Niner Evade 1.5 Backpack vs Attitude Supply ATD1"
description: "Alpha One-Niner Evade 1.5 Backpack vs Attitude Supply ATD1: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/3p8dg0j5ir/alpha-one-niner-evade-1-5-backpack/bnsytm0z9y/attitude-supply-atd1/"
---
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3.  Alpha One-Niner Evade 1.5 Backpack vs. Attitude Supply ATD1

# Alpha One-Niner Evade 1.5 Backpack vs. Attitude Supply ATD1

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

## [Alpha One-Niner Evade 1.5 Backpack](https://onebag.travel/carryon/3p8dg0j5ir/alpha-one-niner-evade-1-5-backpack/)

by [Alpha One-Niner](https://onebag.travel/carryons/?brands=Alpha One-Niner)

![Front facing view of the Alpha One-Niner Evade 1.5 Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990330/carryons/alpha-one-niner-evade-1-5-backpack-3p8dg0j5ir.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>22 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>47×31×14 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$225</td></tr></tbody></table>

## Feature by feature

| Alpha One-Niner Evade 1.5 Backpack | Feature | Attitude Supply ATD1 |
| --- | --- | --- |
| Storage |
| 2 | Compression | 4 |
| None | Expanded Capacity | 55L |
| 1 | Opening | 1 |
| back | Passport | front |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| 16in | Laptop | 15in |
| 5 | Main Compartments | 2 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>Dimension-Polyant’s X42, Cordura 500D Nylon, 630D HD Twill</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>

## Key differences between the Alpha One-Niner Evade 1.5 Backpack and Attitude Supply ATD1

-   **Compression straps:** 2 on the Alpha One-Niner Evade 1.5 Backpack; 4 on the Attitude Supply ATD1.
-   **Passport pocket:** Back on the Alpha One-Niner Evade 1.5 Backpack; Front on the Attitude Supply ATD1.
-   **Laptop sleeve:** 16in on the Alpha One-Niner Evade 1.5 Backpack; 15in on the Attitude Supply ATD1.
-   **Main compartments:** 5 on the Alpha One-Niner Evade 1.5 Backpack; 2 on the Attitude Supply ATD1.

Both have: backpack straps, hip belt, sternum strap, built-in organizer, water bottle pockets, 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. 142 accept only the Alpha One-Niner Evade 1.5 Backpack, and 0 accept only the Attitude Supply ATD1.

### Only the Alpha One-Niner Evade 1.5 Backpack fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Macau, Air Malta, Air Mauritius, Air Nostrum, Air Serbia, Air Seychelles, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Asiana Airlines, ATA Airlines, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Belavia, Biman Bangladesh, Blue Air, Boliviana de Aviacion, British Airways, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Eastern, CommutAir, Conviasa, Czech Airlines, Delta Airlines, Dragonair, EL AL, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, flybe, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kenya Airways, KLM, Kulula, Kuwait Air, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Middle East Airlines, Monarch Airlines, Nordwind Airlines, Norwegian, Oman Air, Onur Air, Pakistan International, Peach, Porter Airlines, Qantas Airways, Qatar Airways, Regional Express, Republic Airways, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Thai Airways, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, Travel Service Airlines, TUI, Turkish Airlines, Ukraine International, United Airlines, Uzbekistan Air, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Virgin Australia, Volotea, WestJet, WOW Airlines, Xiamen.

## Alpha One-Niner Evade 1.5 Backpack vs. Attitude Supply ATD1: which should you pack?

The **Alpha One-Niner Evade 1.5 Backpack** carries 2L more than the **Attitude Supply ATD1** (22L vs. 20L), while the **Alpha One-Niner Evade 1.5 Backpack** is the lighter pack at 1.5kg (vs. 1.5kg). For carry-on flexibility, the **Alpha One-Niner Evade 1.5 Backpack** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner Evade 1.5 Backpack; if you want to travel lighter, the Alpha One-Niner Evade 1.5 Backpack is the better call.