---
url: "https://onebag.travel/compare/3dlhnne6vf/patagonia-tres-backpack-25l/t8aftb71iv/tatonka-flightcase-27/"
title: "Patagonia Tres Backpack 25L vs Tatonka Flightcase 27"
description: "Patagonia Tres Backpack 25L vs Tatonka Flightcase 27: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/3dlhnne6vf/patagonia-tres-backpack-25l/t8aftb71iv/tatonka-flightcase-27/"
---
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3.  Patagonia Tres Backpack 25L vs. Tatonka Flightcase 27

# Patagonia Tres Backpack 25L vs. Tatonka Flightcase 27

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

## [Patagonia Tres Backpack 25L](https://onebag.travel/carryon/3dlhnne6vf/patagonia-tres-backpack-25l/)

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

![Front facing view of the Patagonia Tres Backpack 25L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1632804553/carryons/Patagonia_Tres_Backpack_25L_oncsjj.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>25 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>48×31×17 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$129</td></tr></tbody></table>

## Feature by feature

| Patagonia Tres Backpack 25L | Feature | Tatonka Flightcase 27 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| N | Passport | front |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | hideable |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 1 | Main Compartments | 4 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | N |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>630-denier 100% nylon, 200-denier 100% recycled polyester</td><td>T-Travel Tex Melange Eco</td></tr></tbody></table>

## [Tatonka Flightcase 27](https://onebag.travel/carryon/t8aftb71iv/tatonka-flightcase-27/)

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

![Front facing view of the Tatonka Flightcase 27](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990713/carryons/tatonka-flightcase-27-t8aftb71iv.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>27 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>52×28×16 cm</td></tr><tr><td>Airline fit</td><td>89%</td></tr><tr><td>Price</td><td>$150</td></tr></tbody></table>

## Key differences between the Patagonia Tres Backpack 25L and Tatonka Flightcase 27

-   **Passport pocket:** No on the Patagonia Tres Backpack 25L; Front on the Tatonka Flightcase 27.
-   **Main compartments:** 1 on the Patagonia Tres Backpack 25L; 4 on the Tatonka Flightcase 27.
-   **Built-in organizer:** Yes on the Patagonia Tres Backpack 25L; No on the Tatonka Flightcase 27.
-   **Water resistant:** Yes on the Patagonia Tres Backpack 25L; No on the Tatonka Flightcase 27.

Both have: luggage passthrough, backpack straps, sternum strap, laptop sleeve.

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

We checked both bags against the carry-on size limits of 189 airlines. 167 accept both. 7 accept only the Patagonia Tres Backpack 25L, and 1 accept only the Tatonka Flightcase 27.

### Only the Patagonia Tres Backpack 25L fits

Belavia, Etihad Airways, Oman Air, Qatar Airways, Regional Express, Royal Jordanian, Virgin Australia.

### Only the Tatonka Flightcase 27 fits

Great Lakes Airlines.

## Patagonia Tres Backpack 25L vs. Tatonka Flightcase 27: which should you pack?

The **Tatonka Flightcase 27** carries 2L more than the **Patagonia Tres Backpack 25L** (25L vs. 27L), while the **Patagonia Tres Backpack 25L** is the lighter pack at 0.9kg (vs. 1.1kg). For carry-on flexibility, the **Patagonia Tres Backpack 25L** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tatonka Flightcase 27; if you want to travel lighter, the Patagonia Tres Backpack 25L is the better call.