---
url: "https://onebag.travel/compare/aldchn064h/patagonia-ascensionist-pack-55l/g9gkqqi9n3/tom-bihn-aeronaut-30l/"
title: "Patagonia Ascensionist Pack 55L vs Tom Bihn Aeronaut 30L"
description: "Patagonia Ascensionist Pack 55L vs Tom Bihn Aeronaut 30L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/aldchn064h/patagonia-ascensionist-pack-55l/g9gkqqi9n3/tom-bihn-aeronaut-30l/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Patagonia Ascensionist Pack 55L vs. Tom Bihn Aeronaut 30L

# Patagonia Ascensionist Pack 55L vs. Tom Bihn Aeronaut 30L

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

## [Patagonia Ascensionist Pack 55L](https://onebag.travel/carryon/aldchn064h/patagonia-ascensionist-pack-55l/)

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

![Front facing view of the Patagonia Ascensionist Pack 55L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1633507455/carryons/Ascensionist_Pack_55_fk9adg.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>55 L</td></tr><tr><td>Weight</td><td>1.28 kg</td></tr><tr><td>Dimensions</td><td>67×32×20 cm</td></tr><tr><td>Airline fit</td><td>1%</td></tr><tr><td>Price</td><td>$219</td></tr></tbody></table>

## Feature by feature

| Patagonia Ascensionist Pack 55L | Feature | Tom Bihn Aeronaut 30L |
| --- | --- | --- |
| Storage |
| removable | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| N | Passport | side |
| N | Passthrough | N |
| Carry |
| Y | Backpack | hideable |
| removable | Hip Belt | removable |
| removable | 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-denier 100% recycled nylon ripstop, 0-denier 100% nylon ripstop</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 30L](https://onebag.travel/carryon/g9gkqqi9n3/tom-bihn-aeronaut-30l/)

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

![Front facing view of the Tom Bihn Aeronaut 30L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601600830/carryons/aeronaut30_gvxzea.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>50×32×20 cm</td></tr><tr><td>Airline fit</td><td>91%</td></tr><tr><td>Price</td><td>$330</td></tr></tbody></table>

## Key differences between the Patagonia Ascensionist Pack 55L and Tom Bihn Aeronaut 30L

-   **Compression straps:** Removable on the Patagonia Ascensionist Pack 55L; No on the Tom Bihn Aeronaut 30L.
-   **Passport pocket:** No on the Patagonia Ascensionist Pack 55L; Side on the Tom Bihn Aeronaut 30L.
-   **Backpack straps:** Yes on the Patagonia Ascensionist Pack 55L; Hideable on the Tom Bihn Aeronaut 30L.
-   **Main compartments:** 1 on the Patagonia Ascensionist Pack 55L; 5 on the Tom Bihn Aeronaut 30L.

Both have: hip belt, sternum strap, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 2 accept both. 0 accept only the Patagonia Ascensionist Pack 55L, and 170 accept only the Tom Bihn Aeronaut 30L.

### Only the Tom Bihn Aeronaut 30L fits

Adria Airways, Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Baltic, Air Canada, Air Caraibes, Air China, Air Europa, Air France, Air India, Air Koryo, Air Macau, Air Malta, Air Mauritius, Air New Zealand, Air Nostrum, Air Serbia, Air Seychelles, Air Tahiti Nui, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Asiana Airlines, ATA Airlines, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Azul Linhas, Bahamasair, Bangkok Airways, Belavia, Biman Bangladesh, Blue Air, Boliviana de Aviacion, British Airways, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Caribbean Airlines, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Eastern, China Southern, CommutAir, Conviasa, Copa Airlines, Croatia Air, Cubana de Aviacion, Czech Airlines, Delta Airlines, Dragonair, EL AL, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, flybe, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Hainan Airlines, Hawaiian Airlines, Hong Kong Airlines, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Iran Aseman Air, Island Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kenya Airways, KLM, Korean Air, Kulula, Kuwait Air, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Middle East Airlines, Monarch Airlines, Nordwind Airlines, Norwegian, Oman Air, Onur Air, Pakistan International, Peach, PenAir, Philippine Airlines, Porter Airlines, Qantas Airways, Qatar Airways, Republic Airways, Royal Air Morocco, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Saudi Arabian Airlines, Scoot, Shandong Airlines, Shenzhen Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Sky Airlines, Skywest, Inc., South African Airways, Southwest Airlines, SpiceJet, Spirit Airlines, SriLankan Airlines, Sun Country, Sun Express, Swiss Int'l Air Lines, TAAG Angola, TAM Airlines, TAP Air Portugal, TAROM, Thai Airways, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, Travel Service Airlines, TUI, Turkish Airlines, Ukraine International, United Airlines, Ural Airlines, Uzbekistan Air, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Volotea, WestJet, WOW Airlines, Xiamen.

## Patagonia Ascensionist Pack 55L vs. Tom Bihn Aeronaut 30L: which should you pack?

The **Patagonia Ascensionist Pack 55L** carries 25L more than the **Tom Bihn Aeronaut 30L** (55L vs. 30L), while the **Patagonia Ascensionist Pack 55L** is the lighter pack at 1.28kg (vs. 1.3kg). For carry-on flexibility, the **Tom Bihn Aeronaut 30L** fits 91% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Ascensionist Pack 55L; if you want to travel lighter, the Patagonia Ascensionist Pack 55L is the better call.