---
url: "https://onebag.travel/compare/2rbg4dtslw/aer-travel-pack-4-35l/e0wr0fqmr0/tortuga-travel-backpack-pro-40l/"
title: "Aer Travel Pack 4 35L vs Tortuga Travel Backpack Pro 40L"
description: "Aer Travel Pack 4 35L vs Tortuga Travel Backpack Pro 40L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/2rbg4dtslw/aer-travel-pack-4-35l/e0wr0fqmr0/tortuga-travel-backpack-pro-40l/"
---
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3.  Aer Travel Pack 4 35L vs. Tortuga Travel Backpack Pro 40L

# Aer Travel Pack 4 35L vs. Tortuga Travel Backpack Pro 40L

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

## [Aer Travel Pack 4 35L](https://onebag.travel/carryon/2rbg4dtslw/aer-travel-pack-4-35l/)

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

![Front facing view of the Aer Travel Pack 4 35L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990469/carryons/aer-travel-pack-4-35l-2rbg4dtslw.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>35 L</td></tr><tr><td>Weight</td><td>1.8 kg</td></tr><tr><td>Dimensions</td><td>55×34×23 cm</td></tr><tr><td>Airline fit</td><td>68%</td></tr><tr><td>Price</td><td>$260</td></tr></tbody></table>

## Feature by feature

| Aer Travel Pack 4 35L | Feature | Tortuga Travel Backpack Pro 40L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| optional | Hip Belt | removable |
| removable | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 5 | Main Compartments | 5 |
| 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>1680D CORDURA® ballistic nylon exterior (bluesign® approved)</td><td>SHELL200</td></tr></tbody></table>

## [Tortuga Travel Backpack Pro 40L](https://onebag.travel/carryon/e0wr0fqmr0/tortuga-travel-backpack-pro-40l/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>2 kg</td></tr><tr><td>Dimensions</td><td>55×35×20 cm</td></tr><tr><td>Airline fit</td><td>86%</td></tr><tr><td>Price</td><td>$350</td></tr></tbody></table>

## Key differences between the Aer Travel Pack 4 35L and Tortuga Travel Backpack Pro 40L

-   **Luggage passthrough:** Yes on the Aer Travel Pack 4 35L; No on the Tortuga Travel Backpack Pro 40L.
-   **Hip belt:** Optional on the Aer Travel Pack 4 35L; Removable on the Tortuga Travel Backpack Pro 40L.
-   **Sternum strap:** Removable on the Aer Travel Pack 4 35L; Yes on the Tortuga Travel Backpack Pro 40L.

Both have: passport pocket, 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. 128 accept both. 1 accept only the Aer Travel Pack 4 35L, and 34 accept only the Tortuga Travel Backpack Pro 40L.

### Only the Aer Travel Pack 4 35L fits

Cayman Airways.

### Only the Tortuga Travel Backpack Pro 40L fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

## Aer Travel Pack 4 35L vs. Tortuga Travel Backpack Pro 40L: which should you pack?

The **Tortuga Travel Backpack Pro 40L** carries 5L more than the **Aer Travel Pack 4 35L** (35L vs. 40L), while the **Aer Travel Pack 4 35L** is the lighter pack at 1.8kg (vs. 2kg). For carry-on flexibility, the **Tortuga Travel Backpack Pro 40L** fits 86% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tortuga Travel Backpack Pro 40L; if you want to travel lighter, the Aer Travel Pack 4 35L is the better call.