---
url: "https://onebag.travel/compare/g8vk4elmur/exped-mountain-pro-40/kq4hid7zll/tom-bihn-aeronaut-45l/"
title: "Exped Mountain Pro 40 vs Tom Bihn Aeronaut 45L"
description: "Exped Mountain Pro 40 vs Tom Bihn Aeronaut 45L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/g8vk4elmur/exped-mountain-pro-40/kq4hid7zll/tom-bihn-aeronaut-45l/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Exped Mountain Pro 40 vs. Tom Bihn Aeronaut 45L

# Exped Mountain Pro 40 vs. Tom Bihn Aeronaut 45L

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

## [Exped Mountain Pro 40](https://onebag.travel/carryon/g8vk4elmur/exped-mountain-pro-40/)

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

![Front facing view of the Exped Mountain Pro 40](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1623838719/carryons/Exped_Mountain_Pro_40_vwnu8n.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>42 L</td></tr><tr><td>Weight</td><td>1.39 kg</td></tr><tr><td>Dimensions</td><td>62×32×26 cm</td></tr><tr><td>Airline fit</td><td>2%</td></tr><tr><td>Price</td><td>$190</td></tr></tbody></table>

## Feature by feature

| Exped Mountain Pro 40 | Feature | Tom Bihn Aeronaut 45L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 3 | Opening | 1 |
| N | Passport | side |
| N | Passthrough | N |
| Carry |
| Y | Backpack | hideable |
| removable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| Inside |
| N | Laptop | N |
| 1 | Main Compartments | 5 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>420 D Oxford nylon, PU coated, 3'000 mm water column</td><td>1050 denier ballistic nylon OR ultralight 400d Halcyon/420d nylon ripstop 200 denier Halcyon/nylon ripstop fabric lining</td></tr></tbody></table>

## [Tom Bihn Aeronaut 45L](https://onebag.travel/carryon/kq4hid7zll/tom-bihn-aeronaut-45l/)

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

![Front facing view of the Tom Bihn Aeronaut 45L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601602491/carryons/tomaero45_hv7dhp.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>45 L</td></tr><tr><td>Weight</td><td>1.4 kg</td></tr><tr><td>Dimensions</td><td>56×36×23 cm</td></tr><tr><td>Airline fit</td><td>45%</td></tr><tr><td>Price</td><td>$340</td></tr></tbody></table>

## Key differences between the Exped Mountain Pro 40 and Tom Bihn Aeronaut 45L

-   **Opening:** Top flap on the Exped Mountain Pro 40; Clamshell on the Tom Bihn Aeronaut 45L.
-   **Passport pocket:** No on the Exped Mountain Pro 40; Side on the Tom Bihn Aeronaut 45L.
-   **Backpack straps:** Yes on the Exped Mountain Pro 40; Hideable on the Tom Bihn Aeronaut 45L.
-   **Sternum strap:** Yes on the Exped Mountain Pro 40; Removable on the Tom Bihn Aeronaut 45L.
-   **Main compartments:** 1 on the Exped Mountain Pro 40; 5 on the Tom Bihn Aeronaut 45L.

Both have: hip belt, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 3 accept both. 0 accept only the Exped Mountain Pro 40, and 82 accept only the Tom Bihn Aeronaut 45L.

### Only the Tom Bihn Aeronaut 45L fits

Adria Airways, Aegean Airlines, Air Asia, Air Astana, Air Europa, Air Koryo, Air Macau, Air New Zealand, Air Nostrum, Air Tahiti Nui, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Atlas Global, Avianca , Azul Linhas, Bahamasair, Bangkok Airways, Biman Bangladesh, British Airways, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, China Southern, CommutAir, Conviasa, Copa Airlines, Cubana de Aviacion, Delta Airlines, Dragonair, EL AL, EVA Air, Finnair, Frontier Airlines, Garuda Indonesia, Hainan Airlines, Hawaiian Airlines, Hong Kong Airlines, Iran Aseman Air, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Korean Air, Kulula, Kuwait Air, Malaysia Airlines, Mango, Middle East Airlines, Monarch Airlines, Onur Air, PenAir, Philippine Airlines, Qantas Airways, Republic Airways, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Skywest, Inc., South African Airways, Southwest Airlines, SpiceJet, Spirit Airlines, SriLankan Airlines, Sun Country, TAAG Angola, TAM Airlines, Thai Airways, Trans States, Travel Service Airlines, United Airlines, Ural Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WOW Airlines.

## Exped Mountain Pro 40 vs. Tom Bihn Aeronaut 45L: which should you pack?

The **Tom Bihn Aeronaut 45L** carries 3L more than the **Exped Mountain Pro 40** (42L vs. 45L), while the **Exped Mountain Pro 40** is the lighter pack at 1.39kg (vs. 1.4kg). For carry-on flexibility, the **Tom Bihn Aeronaut 45L** fits 45% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Aeronaut 45L; if you want to travel lighter, the Exped Mountain Pro 40 is the better call.