---
url: "https://onebag.travel/compare/bnsytm0z9y/attitude-supply-atd1/tfrpjpuvuw/piorama-delta/"
title: "Attitude Supply ATD1 vs Piorama Delta - One Bag Travel"
description: "Attitude Supply ATD1 vs Piorama Delta: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/bnsytm0z9y/attitude-supply-atd1/tfrpjpuvuw/piorama-delta/"
---
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3.  Attitude Supply ATD1 vs. Piorama Delta

# Attitude Supply ATD1 vs. Piorama Delta

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

## [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>

## Feature by feature

| Attitude Supply ATD1 | Feature | Piorama Delta |
| --- | --- | --- |
| Storage |
| 4 | Compression | 2 |
| 55L | Expanded Capacity | 42L |
| 1 | Opening | 1 |
| front | Passport | front |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 16in |
| 2 | Main Compartments | 3 |
| 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>500d, PU coated Cordura with DWR</td><td>900D Nylon</td></tr></tbody></table>

## [Piorama Delta](https://onebag.travel/carryon/tfrpjpuvuw/piorama-delta/)

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

![Front facing view of the Piorama Delta](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990424/carryons/piorama-delta-tfrpjpuvuw.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>16 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>42×32×12 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$195</td></tr></tbody></table>

## Key differences between the Attitude Supply ATD1 and Piorama Delta

-   **Compression straps:** 4 on the Attitude Supply ATD1; 2 on the Piorama Delta.
-   **Expansion:** 55L when expanded on the Attitude Supply ATD1; 42L when expanded on the Piorama Delta.
-   **Hip belt:** Removable on the Attitude Supply ATD1; No on the Piorama Delta.
-   **Laptop sleeve:** 15in on the Attitude Supply ATD1; 16in on the Piorama Delta.
-   **Main compartments:** 2 on the Attitude Supply ATD1; 3 on the Piorama Delta.

Both have: passport pocket, backpack straps, 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. 0 accept only the Attitude Supply ATD1, and 147 accept only the Piorama Delta.

### Only the Piorama Delta 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 Tahiti, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, American Eagle, 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, easyJet, EL AL, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, flybe, Garuda Indonesia, Gol Linhas Aereas, Gulf Air, 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, Ravn Alaska, 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.

## Attitude Supply ATD1 vs. Piorama Delta: which should you pack?

The **Attitude Supply ATD1** carries 4L more than the **Piorama Delta** (20L vs. 16L), while the **Piorama Delta** is the lighter pack at 1.2kg (vs. 1.5kg). For carry-on flexibility, the **Piorama Delta** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Attitude Supply ATD1; if you want to travel lighter, the Piorama Delta is the better call.