---
url: "https://onebag.travel/compare/2rbg4dtslw/aer-travel-pack-4-35l/9xu51kf1km/aer-travel-pack-2-small/"
title: "Aer Travel Pack 4 35L vs Aer Travel Pack 2 Small"
description: "Aer Travel Pack 4 35L vs Aer Travel Pack 2 Small: 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/9xu51kf1km/aer-travel-pack-2-small/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Aer Travel Pack 4 35L vs. Aer Travel Pack 2 Small

# Aer Travel Pack 4 35L vs. Aer Travel Pack 2 Small

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 | Aer Travel Pack 2 Small |
| --- | --- | --- |
| Storage |
| N | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top, side |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| optional | Hip Belt | optional |
| removable | Sternum Strap | removable |
| Inside |
| 16in | Laptop | 16in |
| 5 | Main Compartments | 5 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 1, 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>700D Cordura</td></tr></tbody></table>

## [Aer Travel Pack 2 Small](https://onebag.travel/carryon/9xu51kf1km/aer-travel-pack-2-small/)

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

![Front facing view of the Aer Travel Pack 2 Small](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620122261/carryons/Aer_Travel_Pack_2_Small_hkws6h.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>28 L</td></tr><tr><td>Weight</td><td>1.7 kg</td></tr><tr><td>Dimensions</td><td>48×33×19 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$229</td></tr></tbody></table>

## Key differences between the Aer Travel Pack 4 35L and Aer Travel Pack 2 Small

-   **Compression straps:** No on the Aer Travel Pack 4 35L; 4 on the Aer Travel Pack 2 Small.
-   **Passport pocket:** Top on the Aer Travel Pack 4 35L; Top, side on the Aer Travel Pack 2 Small.
-   **Water bottle pockets:** 2, side on the Aer Travel Pack 4 35L; 1, side on the Aer Travel Pack 2 Small.

Both have: luggage passthrough, backpack straps, hip belt, sternum strap, laptop sleeve, built-in organizer, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 129 accept both. 0 accept only the Aer Travel Pack 4 35L, and 45 accept only the Aer Travel Pack 2 Small.

### Only the Aer Travel Pack 2 Small fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

## Aer Travel Pack 4 35L vs. Aer Travel Pack 2 Small: which should you pack?

The **Aer Travel Pack 4 35L** carries 7L more than the **Aer Travel Pack 2 Small** (35L vs. 28L), while the **Aer Travel Pack 2 Small** is the lighter pack at 1.7kg (vs. 1.8kg). For carry-on flexibility, the **Aer Travel Pack 2 Small** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Travel Pack 4 35L; if you want to travel lighter, the Aer Travel Pack 2 Small is the better call.