---
url: "https://onebag.travel/compare/o39glf04zy/timbuk2-division-laptop-backpack-deluxe/ut39o0uw8z/aer-day-pack-3/"
title: "Timbuk2 Division Laptop Backpack Deluxe vs Aer Day Pack 3"
description: "Timbuk2 Division Laptop Backpack Deluxe vs Aer Day Pack 3: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/o39glf04zy/timbuk2-division-laptop-backpack-deluxe/ut39o0uw8z/aer-day-pack-3/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Timbuk2 Division Laptop Backpack Deluxe vs. Aer Day Pack 3

# Timbuk2 Division Laptop Backpack Deluxe vs. Aer Day Pack 3

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

## [Timbuk2 Division Laptop Backpack Deluxe](https://onebag.travel/carryon/o39glf04zy/timbuk2-division-laptop-backpack-deluxe/)

by [Timbuk2](https://onebag.travel/carryons/?brands=Timbuk2)

![Front facing view of the Timbuk2 Division Laptop Backpack Deluxe](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990445/carryons/timbuk2-division-laptop-backpack-deluxe-o39glf04zy.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>18 L</td></tr><tr><td>Weight</td><td>1 kg</td></tr><tr><td>Dimensions</td><td>44×27×13 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$140</td></tr></tbody></table>

## Feature by feature

| Timbuk2 Division Laptop Backpack Deluxe | Feature | Aer Day Pack 3 |
| --- | --- | --- |
| Storage |
| 2 | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 1 |
| front | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 16in |
| 3 | Main Compartments | 3 |
| N | 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></td><td>1680D Cordura® ballistic nylon exterior (bluesign® approved)</td></tr></tbody></table>

## [Aer Day Pack 3](https://onebag.travel/carryon/ut39o0uw8z/aer-day-pack-3/)

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

![Front facing view of the Aer Day Pack 3](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990291/carryons/aer-day-pack-3-ut39o0uw8z.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>14 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>44×30×14 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$160</td></tr></tbody></table>

## Key differences between the Timbuk2 Division Laptop Backpack Deluxe and Aer Day Pack 3

-   **Compression straps:** 2 on the Timbuk2 Division Laptop Backpack Deluxe; No on the Aer Day Pack 3.
-   **Opening:** Other on the Timbuk2 Division Laptop Backpack Deluxe; Clamshell on the Aer Day Pack 3.
-   **Passport pocket:** Front on the Timbuk2 Division Laptop Backpack Deluxe; Top on the Aer Day Pack 3.
-   **Laptop sleeve:** 15in on the Timbuk2 Division Laptop Backpack Deluxe; 16in on the Aer Day Pack 3.

Both have: luggage passthrough, backpack straps, sternum strap, 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. 180 accept both. 1 accept only the Timbuk2 Division Laptop Backpack Deluxe, and 0 accept only the Aer Day Pack 3.

### Only the Timbuk2 Division Laptop Backpack Deluxe fits

Great Lakes Airlines.

## Timbuk2 Division Laptop Backpack Deluxe vs. Aer Day Pack 3: which should you pack?

The **Timbuk2 Division Laptop Backpack Deluxe** carries 4L more than the **Aer Day Pack 3** (18L vs. 14L), while the **Timbuk2 Division Laptop Backpack Deluxe** is the lighter pack at 1kg (vs. 1.3kg). For carry-on flexibility, the **Timbuk2 Division Laptop Backpack Deluxe** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Timbuk2 Division Laptop Backpack Deluxe; if you want to travel lighter, the Timbuk2 Division Laptop Backpack Deluxe is the better call.