---
url: "https://onebag.travel/compare/mjtr3jfcvx/aer-tech-pack-3-x-pac/petrgqkg3w/tortuga-expandable-backpack/"
title: "Aer Tech Pack 3 X-Pac vs Tortuga Expandable Backpack"
description: "Aer Tech Pack 3 X-Pac vs Tortuga Expandable Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/mjtr3jfcvx/aer-tech-pack-3-x-pac/petrgqkg3w/tortuga-expandable-backpack/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Aer Tech Pack 3 X-Pac vs. Tortuga Expandable Backpack

# Aer Tech Pack 3 X-Pac vs. Tortuga Expandable Backpack

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

## [Aer Tech Pack 3 X-Pac](https://onebag.travel/carryon/mjtr3jfcvx/aer-tech-pack-3-x-pac/)

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

![Front facing view of the Aer Tech Pack 3 X-Pac](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990467/carryons/aer-tech-pack-3-x-pac-mjtr3jfcvx.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>1.4 kg</td></tr><tr><td>Dimensions</td><td>46×31×18 cm</td></tr><tr><td>Airline fit</td><td>94%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Feature by feature

| Aer Tech Pack 3 X-Pac | Feature | Tortuga Expandable Backpack |
| --- | --- | --- |
| Storage |
| 4 | Compression | 4 |
| None | Expanded Capacity | None |
| 0 | Opening | 1 |
| top | Passport | top, front |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y, hideable |
| N | Hip Belt | Y, removable |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>VX-42 X-Pac (also in 1680D Cordura ballistic nylo)</td><td>630D CORDURA</td></tr></tbody></table>

## [Tortuga Expandable Backpack](https://onebag.travel/carryon/petrgqkg3w/tortuga-expandable-backpack/)

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

![Front facing view of the Tortuga Expandable Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990454/carryons/tortuga-expandable-backpack-petrgqkg3w.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>27 L</td></tr><tr><td>Weight</td><td>1.6 kg</td></tr><tr><td>Dimensions</td><td>49×32×18 cm</td></tr><tr><td>Airline fit</td><td>91%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Key differences between the Aer Tech Pack 3 X-Pac and Tortuga Expandable Backpack

-   **Opening:** Other on the Aer Tech Pack 3 X-Pac; Clamshell on the Tortuga Expandable Backpack.
-   **Passport pocket:** Top on the Aer Tech Pack 3 X-Pac; Top, front on the Tortuga Expandable Backpack.
-   **Backpack straps:** Yes on the Aer Tech Pack 3 X-Pac; Y, hideable on the Tortuga Expandable Backpack.
-   **Hip belt:** No on the Aer Tech Pack 3 X-Pac; Y, removable on the Tortuga Expandable Backpack.
-   **Built-in organizer:** Yes on the Aer Tech Pack 3 X-Pac; No on the Tortuga Expandable Backpack.

Both have: compression straps, luggage passthrough, sternum strap, laptop sleeve, 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. 172 accept both. 5 accept only the Aer Tech Pack 3 X-Pac, and 0 accept only the Tortuga Expandable Backpack.

### Only the Aer Tech Pack 3 X-Pac fits

American Eagle, easyJet, Ravn Alaska, Regional Express, Virgin Australia.

## Aer Tech Pack 3 X-Pac vs. Tortuga Expandable Backpack: which should you pack?

The **Tortuga Expandable Backpack** carries 11L more than the **Aer Tech Pack 3 X-Pac** (16L vs. 27L), while the **Aer Tech Pack 3 X-Pac** is the lighter pack at 1.4kg (vs. 1.6kg). For carry-on flexibility, the **Aer Tech Pack 3 X-Pac** fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tortuga Expandable Backpack; if you want to travel lighter, the Aer Tech Pack 3 X-Pac is the better call.