---
url: "https://onebag.travel/compare/ti7si2k4oi/aer-duffel-pack-3-x-pac/v15adbh2zw/alpaka-gear-traverse-backpack/"
title: "Aer Duffel Pack 3 X-Pac vs Alpaka Gear Traverse Backpack"
description: "Aer Duffel Pack 3 X-Pac vs Alpaka Gear Traverse Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/ti7si2k4oi/aer-duffel-pack-3-x-pac/v15adbh2zw/alpaka-gear-traverse-backpack/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Aer Duffel Pack 3 X-Pac vs. Alpaka Gear Traverse Backpack

# Aer Duffel Pack 3 X-Pac vs. Alpaka Gear Traverse Backpack

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

## [Aer Duffel Pack 3 X-Pac](https://onebag.travel/carryon/ti7si2k4oi/aer-duffel-pack-3-x-pac/)

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

![Front facing view of the Aer Duffel Pack 3 X-Pac](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990321/carryons/aer-duffel-pack-3-x-pac-ti7si2k4oi.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>21 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>52×30×20 cm</td></tr><tr><td>Airline fit</td><td>88%</td></tr><tr><td>Price</td><td>$210</td></tr></tbody></table>

## Feature by feature

| Aer Duffel Pack 3 X-Pac | Feature | Alpaka Gear Traverse Backpack |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 1 |
| top, side | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 5 | Main Compartments | 5 |
| Y | Organizer | Y |
| 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)</td><td>Axoflux 400D ripstop nylon</td></tr></tbody></table>

## [Alpaka Gear Traverse Backpack](https://onebag.travel/carryon/v15adbh2zw/alpaka-gear-traverse-backpack/)

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

![Front facing view of the Alpaka Gear Traverse Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990329/carryons/alpaka-gear-traverse-backpack-v15adbh2zw.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>47×28×18 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Key differences between the Aer Duffel Pack 3 X-Pac and Alpaka Gear Traverse Backpack

-   **Opening:** Other on the Aer Duffel Pack 3 X-Pac; Clamshell on the Alpaka Gear Traverse Backpack.
-   **Passport pocket:** Top, side on the Aer Duffel Pack 3 X-Pac; Top on the Alpaka Gear Traverse Backpack.
-   **Sternum strap:** Removable on the Aer Duffel Pack 3 X-Pac; Yes on the Alpaka Gear Traverse Backpack.

Both have: luggage passthrough, 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. 167 accept both. 0 accept only the Aer Duffel Pack 3 X-Pac, and 9 accept only the Alpaka Gear Traverse Backpack.

### Only the Alpaka Gear Traverse Backpack fits

Air Niugini, Belavia, Etihad Airways, Great Lakes Airlines, Oman Air, Qatar Airways, Regional Express, Royal Jordanian, Virgin Australia.

## Aer Duffel Pack 3 X-Pac vs. Alpaka Gear Traverse Backpack: which should you pack?

The **Alpaka Gear Traverse Backpack** carries 9L more than the **Aer Duffel Pack 3 X-Pac** (21L vs. 30L), while the **Aer Duffel Pack 3 X-Pac** is the lighter pack at 1.3kg (vs. 1.5kg). For carry-on flexibility, the **Alpaka Gear Traverse Backpack** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpaka Gear Traverse Backpack; if you want to travel lighter, the Aer Duffel Pack 3 X-Pac is the better call.