---
url: "https://onebag.travel/compare/g0rrmfoh4g/aer-travel-pack-2/i3dfh43ew9/tom-bihn-brain-bag/"
title: "Aer Travel Pack 2 vs Tom Bihn Brain Bag - One Bag Travel"
description: "Aer Travel Pack 2 vs Tom Bihn Brain Bag: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/g0rrmfoh4g/aer-travel-pack-2/i3dfh43ew9/tom-bihn-brain-bag/"
---
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3.  Aer Travel Pack 2 vs. Tom Bihn Brain Bag

# Aer Travel Pack 2 vs. Tom Bihn Brain Bag

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

## [Aer Travel Pack 2](https://onebag.travel/carryon/g0rrmfoh4g/aer-travel-pack-2/)

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

![Front facing view of the Aer Travel Pack 2](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601603666/carryons/aertravelpack2_f23hfy.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>33 L</td></tr><tr><td>Weight</td><td>1.7 kg</td></tr><tr><td>Dimensions</td><td>55×34×22 cm</td></tr><tr><td>Airline fit</td><td>69%</td></tr><tr><td>Price</td><td>$230</td></tr></tbody></table>

## Feature by feature

| Aer Travel Pack 2 | Feature | Tom Bihn Brain Bag |
| --- | --- | --- |
| Storage |
| 4 | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 4 |
| top | Passport | top |
| Y | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| optional | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| 16in | Laptop | N |
| 5 | Main Compartments | 6 |
| 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>Grey: 900D eco-dyed polyester Black / Blue: 1680D Cordura® ballistic nylon exterior</td><td>525 Ballistic Nylon</td></tr></tbody></table>

## [Tom Bihn Brain Bag](https://onebag.travel/carryon/i3dfh43ew9/tom-bihn-brain-bag/)

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

![Front facing view of the Tom Bihn Brain Bag](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601123264/carryons/tombrainbag_ts952i.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>36 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>46×36×23 cm</td></tr><tr><td>Airline fit</td><td>66%</td></tr><tr><td>Price</td><td>$240</td></tr></tbody></table>

## Key differences between the Aer Travel Pack 2 and Tom Bihn Brain Bag

-   **Opening:** Clamshell on the Aer Travel Pack 2; Top zip on the Tom Bihn Brain Bag.
-   **Luggage passthrough:** Yes on the Aer Travel Pack 2; No on the Tom Bihn Brain Bag.
-   **Hip belt:** Optional on the Aer Travel Pack 2; Removable on the Tom Bihn Brain Bag.
-   **Laptop sleeve:** 16in on the Aer Travel Pack 2; No on the Tom Bihn Brain Bag.
-   **Main compartments:** 5 on the Aer Travel Pack 2; 6 on the Tom Bihn Brain Bag.

Both have: compression straps, passport pocket, backpack straps, sternum strap, 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. 117 accept both. 13 accept only the Aer Travel Pack 2, and 8 accept only the Tom Bihn Brain Bag.

### Only the Aer Travel Pack 2 fits

Aerolineas Argentinas, Air France, Air India, Air Mauritius, Boliviana de Aviacion, Cayman Airways, Indigo, Jet Airways, Kenya Airways, KLM, LATAM , Pakistan International, Sky Airlines.

### Only the Tom Bihn Brain Bag fits

Etihad Airways, Oman Air, Qatar Airways, Ravn Alaska, Royal Jordanian, Scoot, Tiger Airways, WestJet.

## Aer Travel Pack 2 vs. Tom Bihn Brain Bag: which should you pack?

The **Tom Bihn Brain Bag** carries 3L more than the **Aer Travel Pack 2** (33L vs. 36L), while the **Tom Bihn Brain Bag** is the lighter pack at 1.3kg (vs. 1.7kg). For carry-on flexibility, the **Aer Travel Pack 2** fits 69% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Brain Bag; if you want to travel lighter, the Tom Bihn Brain Bag is the better call.