---
url: "https://onebag.travel/carryon/h1rqln9ogu/patagonia-tres-mlc-45l/"
title: "Patagonia Tres MLC® 45L Details - One Bag Travel"
description: "Reviews, airline compatibility, and specifications of the Patagonia Tres MLC® 45L carry-on travel backpack."
source: "https://onebag.travel/carryon/h1rqln9ogu/patagonia-tres-mlc-45l/"
---
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3.  Patagonia Tres MLC® 45L

# Patagonia Tres MLC® 45L

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

Capacity 45 L

Weight 1.5 kg 3.2 lbs

Dimensions 54×41×18 cm 21×16×6.7 in

Airline fit 26 % of airlines

![Front facing view of the Patagonia Tres MLC® 45L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1632754332/carryons/Patagonia_Tres_MLC_45L_gbmz36.webp)

**Deeper stats**



<table class="table table-sm table-borderless" id="carryon-details-table"><tbody><tr><td><span class="underline" title="Litres of capacity per unit of pack weight — higher means you carry more for less.">Capacity-to-weight</span></td><td><span class="metric-value">30 L/kg</span> <span class="imperial-value">14.1 L/lb</span></td><td><span class="badge badge-success">High</span></td></tr><tr><td><span class="underline" title="Total interior volume implied by the outer dimensions.">Cubic space</span></td><td><span class="metric-value">39.9 L</span> <span class="imperial-value">2251 in³</span></td><td></td></tr><tr><td><span class="underline" title="Gap between the bag's outer volume and its rated capacity — lower packs more efficiently.">Rated vs. shell</span></td><td><span class="metric-value">-5 L</span><span class="imperial-value">-5 L</span></td><td><span class="badge badge-success">Low</span></td></tr></tbody></table>

**Airline Compatibility**

✈️ 26% (49/189)

This bag is within the published carry-on limit of 26% of the 189 airlines that publish one.

[Link to Manufacturer](https://www.patagonia.com/product/tres-mlc-convertible-briefcase-backpack-45-liters/48766.html?dwvar_48766_color=SBRO&cgid=luggage-backpacks-casual)

## Our verdict

### Reasons to buy

-   Spacious main compartment which is complemented by its clamshell opening for easy loading and unloading of things.
-   Versatile to use as you can carry it as a messenger bag, duffle bag, or backpack.
-   Features functional organization throughout the entire pack.
-   Quite comfortable to use as a backpack because of its stowable ergonomic shoulder straps.

### Things to consider

-   The orientation of the organizer section can be a bit tricky to use when used in backpack mode.
-   The main compartment could turn into a jumbled mess if not properly organized and used as a backpack.
-   Could use some small external pockets for your small things.

## What reviewers said

-   "I use this for road trips and all casual travel. The shape is perfect for stacking or squeezing into the trunk!"
-   "I bought this bag in 2007ish, and fly weekly with it. That is nearly 13 years and over a thousand flights and I have never had an issue once with it. I’ve recommended it to everyone I know who travels. It is my go-to graduation gift for people."
-   "This is my third MLC bag. Over the years, my other two have been "borrowed" by friends embarking on a hectic travel schedule and "gifted" to them because of their love of the bag. This new bag is just as good as the old tried and true bag from years ago. I recommend it to everyone who asks about my travel gear."

## Features

<table class="table table-sm  table-borderless" id="carryon-details-table"><tbody><tr><td colspan="2" class="border-bottom"><strong>Storage</strong></td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a way to compress the contents to make them smaller?">Compression</span></td><td>No</td></tr><tr><td><span class="underline" title="If this carry-on expands, how much does it expand by?">Expanded Capacity</span></td><td><span>None</span></td></tr><tr><td><span class="underline" title="The type of opening does this carry-on travel backpack have in degrees.">Opening</span></td><td>Clamshell</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a dedicated passport holder?">Passport</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a pass-through opening so you can reach the main compartments without fully opening the bag?">Passthrough</span></td><td>Yes</td></tr><tr><td colspan="2" class="border-bottom"><strong>Carry</strong></td></tr><tr><td><span class="underline" title="Does this have backpack straps?">Backpack</span></td><td>Hideable</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a belt that goes around your hip to help support the weight of the bag?">Hip Belt</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a strap that goes around your upper chest so help support the weight of the bag?">Sternum Strap</span></td><td>Yes</td></tr><tr><td colspan="2" class="border-bottom"><strong>Inside</strong></td></tr><tr><td><span class="underline" title="What size laptop sleeve can this carry-on travel backpack fit?">Laptop</span></td><td>15in</td></tr><tr><td><span class="underline" title="The number of main compartments this bag has.  Side and small compartments don't count.">Main Compartments</span></td><td>1</td></tr><tr><td><span class="underline" title="Does the main compartment of the carry-on travel backpack have features which help you organize?">Organizer</span></td><td>Yes</td></tr><tr><td colspan="2" class="border-bottom"><strong>Outside</strong></td></tr><tr><td><span class="underline" title="Does the backpack have a hardshell component to protect your packed items?">Hard Shell</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry on have a rain-fly to protect it from the weather?">Rain-fly</span></td><td>No</td></tr><tr><td><span class="underline" title="The number of bottle holders this bag has">Water Bottle Holder</span></td><td>No</td></tr><tr><td><span class="underline" title="Is this carry-on travel backpack made with water resistant material?">Water Resistant</span></td><td>Yes</td></tr><tr><td colspan="2"><span class="underline" title="What type of material is this carry-on travel backpack made of?"><strong>Material:</strong></span><br>630-denier nylon, 200-denier 100% recycled polyeste</td></tr></tbody></table>

## Fits the carry-on limits of 49 airlines

Adria Airways Aegean Airlines Air Astana Air Caraibes Air Europa Air Koryo Air New Zealand Air Nostrum Air Tahiti Nui Atlas Global Azul Airlines Azul Linhas British Airways Caribbean Airlines China Southern Cubana de Aviacion Czech Airlines EL AL Finnair Frontier Airlines Hainan Airlines Iberia Iran Air Iran Aseman Air Island Air Jet2 Korean Air Kuwait Air Onur Air PenAir Philippine Airlines Royal Air Morocco Saudi Arabian Airlines Sichuan Airlines SilkAir Silver Airways Singapore Airlines Southwest Airlines SpiceJet Spirit Airlines Sun Country TAAG Angola TAM Airlines Thai Airways Travel Service Airlines Ural Airlines Uzbekistan Air Virgin America WOW Airlines

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These backpacks are related to the Patagonia Tres MLC® 45L:

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