---
url: "https://onebag.travel/compare/po3vdwbsd9/tom-bihn-techonaut-30/wy4hb8c0qy/aer-city-pack-pro/"
title: "Tom Bihn Techonaut 30 vs Aer City Pack Pro - One Bag Travel"
description: "Tom Bihn Techonaut 30 vs Aer City Pack Pro: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/po3vdwbsd9/tom-bihn-techonaut-30/wy4hb8c0qy/aer-city-pack-pro/"
---
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3.  Tom Bihn Techonaut 30 vs. Aer City Pack Pro

# Tom Bihn Techonaut 30 vs. Aer City Pack Pro

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

## [Tom Bihn Techonaut 30](https://onebag.travel/carryon/po3vdwbsd9/tom-bihn-techonaut-30/)

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

<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 kg</td></tr><tr><td>Dimensions</td><td>50×32×21 cm</td></tr><tr><td>Airline fit</td><td>73%</td></tr><tr><td>Price</td><td>$400</td></tr></tbody></table>

## Feature by feature

| Tom Bihn Techonaut 30 | Feature | Aer City Pack Pro |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top, side |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | Y |
| removable | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside |
| 16in | Laptop | 16in |
| 5 | Main Compartments | 5 |
| N | 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>400d Halcyon/420d nylon ripstop exterior</td><td>1680D Cordura® ballistic nylon exterior, or xPac</td></tr></tbody></table>

## [Aer City Pack Pro](https://onebag.travel/carryon/wy4hb8c0qy/aer-city-pack-pro/)

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

![Front facing view of the Aer City Pack Pro](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990319/carryons/aer-city-pack-pro-wy4hb8c0qy.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>46×31×19 cm</td></tr><tr><td>Airline fit</td><td>94%</td></tr><tr><td>Price</td><td>$210</td></tr></tbody></table>

## Key differences between the Tom Bihn Techonaut 30 and Aer City Pack Pro

-   **Passport pocket:** Top on the Tom Bihn Techonaut 30; Top, side on the Aer City Pack Pro.
-   **Backpack straps:** Hideable on the Tom Bihn Techonaut 30; Yes on the Aer City Pack Pro.
-   **Hip belt:** Removable on the Tom Bihn Techonaut 30; No on the Aer City Pack Pro.
-   **Built-in organizer:** No on the Tom Bihn Techonaut 30; Yes on the Aer City Pack Pro.

Both have: luggage passthrough, sternum strap, laptop sleeve, 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. 138 accept both. 0 accept only the Tom Bihn Techonaut 30, and 39 accept only the Aer City Pack Pro.

### Only the Aer City Pack Pro fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Ravn Alaska, Regional Express, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, Xiamen.

## Tom Bihn Techonaut 30 vs. Aer City Pack Pro: which should you pack?

The **Tom Bihn Techonaut 30** carries 6L more than the **Aer City Pack Pro** (30L vs. 24L), while the **Tom Bihn Techonaut 30** is the lighter pack at 1kg (vs. 1.2kg). For carry-on flexibility, the **Aer City Pack Pro** fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Techonaut 30; if you want to travel lighter, the Tom Bihn Techonaut 30 is the better call.