---
url: "https://onebag.travel/compare/h1rqln9ogu/patagonia-tres-mlc-45l/hm1d4bntl0/cabin-zero-classic-plus-42l/"
title: "Patagonia Tres MLC® 45L vs Cabin Zero Classic Plus 42L"
description: "Patagonia Tres MLC® 45L vs Cabin Zero Classic Plus 42L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/h1rqln9ogu/patagonia-tres-mlc-45l/hm1d4bntl0/cabin-zero-classic-plus-42l/"
---
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3.  Patagonia Tres MLC® 45L vs. Cabin Zero Classic Plus 42L

# Patagonia Tres MLC® 45L vs. Cabin Zero Classic Plus 42L

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

## [Patagonia Tres MLC® 45L](https://onebag.travel/carryon/h1rqln9ogu/patagonia-tres-mlc-45l/)

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

![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)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>45 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>54×41×18 cm</td></tr><tr><td>Airline fit</td><td>26%</td></tr><tr><td>Price</td><td>$179</td></tr></tbody></table>

## Feature by feature

| Patagonia Tres MLC® 45L | Feature | Cabin Zero Classic Plus 42L |
| --- | --- | --- |
| Storage |
| N | Compression | 4 |
| 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 | 2 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>630-denier nylon, 200-denier 100% recycled polyeste</td><td>600 Denier Polyester</td></tr></tbody></table>

## [Cabin Zero Classic Plus 42L](https://onebag.travel/carryon/hm1d4bntl0/cabin-zero-classic-plus-42l/)

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

![Front facing view of the Cabin Zero Classic Plus 42L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1621497488/carryons/Cabin_Zero_Plus_42L_fuzaua.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>1.2 kg</td></tr><tr><td>Dimensions</td><td>54×35×20 cm</td></tr><tr><td>Airline fit</td><td>87%</td></tr><tr><td>Price</td><td>$122</td></tr></tbody></table>

## Key differences between the Patagonia Tres MLC® 45L and Cabin Zero Classic Plus 42L

-   **Compression straps:** No on the Patagonia Tres MLC® 45L; 4 on the Cabin Zero Classic Plus 42L.
-   **Passport pocket:** No on the Patagonia Tres MLC® 45L; Front on the Cabin Zero Classic Plus 42L.
-   **Main compartments:** 1 on the Patagonia Tres MLC® 45L; 2 on the Cabin Zero Classic Plus 42L.
-   **Water bottle pockets:** No on the Patagonia Tres MLC® 45L; 1, side on the Cabin Zero Classic Plus 42L.

Both have: luggage passthrough, backpack straps, sternum strap, laptop sleeve, built-in organizer, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 49 accept both. 0 accept only the Patagonia Tres MLC® 45L, and 116 accept only the Cabin Zero Classic Plus 42L.

### Only the Cabin Zero Classic Plus 42L fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Baltic, Air Canada, Air China, Air France, Air India, Air Macau, Air Malta, Air Mauritius, Air Serbia, Air Seychelles, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Asiana Airlines, ATA Airlines, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, China Eastern, CommutAir, Conviasa, Copa Airlines, Croatia Air, Delta Airlines, Dragonair, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Flair Air, flybe, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Icelandair, Indigo, InselAir, Interjet, Japan Airlines, Jet Airways, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kenya Airways, KLM, Kulula, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Middle East Airlines, Monarch Airlines, Nordwind Airlines, Norwegian, Pakistan International, Peach, Porter Airlines, Qantas Airways, Republic Airways, Royal Brunei Airlines, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, TUI, Turkish Airlines, Ukraine International, United Airlines, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Volotea, Xiamen.

## Patagonia Tres MLC® 45L vs. Cabin Zero Classic Plus 42L: which should you pack?

The **Patagonia Tres MLC® 45L** carries 3L more than the **Cabin Zero Classic Plus 42L** (45L vs. 42L), while the **Cabin Zero Classic Plus 42L** is the lighter pack at 1.2kg (vs. 1.5kg). For carry-on flexibility, the **Cabin Zero Classic Plus 42L** fits 87% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Tres MLC® 45L; if you want to travel lighter, the Cabin Zero Classic Plus 42L is the better call.