---
url: "https://onebag.travel/compare/3ycptrtuej/tropicfeel-shell-prolite/u9gebyvt58/attitude-supply-atd1-backpack/"
title: "Tropicfeel Shell ProLite vs Attitude Supply ATD1 Backpack"
description: "Tropicfeel Shell ProLite 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/3ycptrtuej/tropicfeel-shell-prolite/u9gebyvt58/attitude-supply-atd1-backpack/"
---
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3.  Tropicfeel Shell ProLite vs. Attitude Supply ATD1 Backpack

# Tropicfeel Shell ProLite vs. Attitude Supply ATD1 Backpack

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

## [Tropicfeel Shell ProLite](https://onebag.travel/carryon/3ycptrtuej/tropicfeel-shell-prolite/)

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

![Front facing view of the Tropicfeel Shell ProLite](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990718/carryons/tropicfeel-shell-prolite-3ycptrtuej.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>0.9 kg</td></tr><tr><td>Dimensions</td><td>50×30×23 cm</td></tr><tr><td>Airline fit</td><td>72%</td></tr><tr><td>Price</td><td>$270</td></tr></tbody></table>

## Feature by feature

| Tropicfeel Shell ProLite | Feature | Attitude Supply ATD1 Backpack |
| --- | --- | --- |
| Storage |
| 4 | Compression | 4 |
| 40L | Expanded Capacity | 55L |
| 1 | Opening | 1 |
| top, back | Passport | front |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| hideable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| Inside |
| 16in | Laptop | 16in |
| 4 | 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>Recycled Taslan</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 Tropicfeel Shell ProLite and Attitude Supply ATD1 Backpack

-   **Expansion:** 40L when expanded on the Tropicfeel Shell ProLite; 55L when expanded on the Attitude Supply ATD1 Backpack.
-   **Passport pocket:** Top, back on the Tropicfeel Shell ProLite; Front on the Attitude Supply ATD1 Backpack.
-   **Hip belt:** Hideable on the Tropicfeel Shell ProLite; Removable on the Attitude Supply ATD1 Backpack.
-   **Sternum strap:** Yes on the Tropicfeel Shell ProLite; Removable on the Attitude Supply ATD1 Backpack.
-   **Main compartments:** 4 on the Tropicfeel Shell ProLite; 2 on the Attitude Supply ATD1 Backpack.

Both have: compression straps, backpack straps, laptop sleeve, 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. 104 accept only the Tropicfeel Shell ProLite, and 0 accept only the Attitude Supply ATD1 Backpack.

### Only the Tropicfeel Shell ProLite fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Canada, Air Caraibes, Air France, Air India, Air Macau, Air Mauritius, Air Nostrum, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, British Airways, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Conviasa, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, Kuwait Air, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Oman Air, Onur Air, Peach, Porter Airlines, Qantas Airways, Qatar Airways, Republic Airways, Royal Jordanian, SAS Scandinavian, Scoot, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Swiss Int'l Air Lines, Thai Airways, Tiger Airways, Trans States, Travel Service Airlines, Turkish Airlines, United Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WestJet, WOW Airlines.

## Tropicfeel Shell ProLite vs. Attitude Supply ATD1 Backpack: which should you pack?

The **Attitude Supply ATD1 Backpack** carries 3L more than the **Tropicfeel Shell ProLite** (20L vs. 23L), while the **Tropicfeel Shell ProLite** is the lighter pack at 0.9kg (vs. 1.7kg). For carry-on flexibility, the **Tropicfeel Shell ProLite** fits 72% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Attitude Supply ATD1 Backpack; if you want to travel lighter, the Tropicfeel Shell ProLite is the better call.