---
url: "https://onebag.travel/compare/esrcmzvrry/patagonia-black-hole-mlc-45l/v15adbh2zw/alpaka-gear-traverse-backpack/"
title: "Patagonia Black Hole® MLC® 45L vs Alpaka Gear Traverse Backpack"
description: "Patagonia Black Hole® MLC® 45L vs Alpaka Gear Traverse Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/esrcmzvrry/patagonia-black-hole-mlc-45l/v15adbh2zw/alpaka-gear-traverse-backpack/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Patagonia Black Hole® MLC® 45L vs. Alpaka Gear Traverse Backpack

# Patagonia Black Hole® MLC® 45L vs. Alpaka Gear Traverse Backpack

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

## [Patagonia Black Hole® MLC® 45L](https://onebag.travel/carryon/esrcmzvrry/patagonia-black-hole-mlc-45l/)

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

![Front facing view of the Patagonia Black Hole® MLC® 45L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1632883589/carryons/Patagonia_Black_Hole_MLC_45L_ta74b3.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>1.7 kg</td></tr><tr><td>Dimensions</td><td>56×37×19 cm</td></tr><tr><td>Airline fit</td><td>26%</td></tr><tr><td>Price</td><td>$240</td></tr></tbody></table>

## Feature by feature

| Patagonia Black Hole® MLC® 45L | Feature | Alpaka Gear Traverse Backpack |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 16in |
| 5 | Main Compartments | 5 |
| N | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>14.1-oz 900-denier 100% postconsumer recycled polyester ripstop with a postindustrial recycled TPU-film laminate</td><td>Axoflux 400D ripstop nylon</td></tr></tbody></table>

## [Alpaka Gear Traverse Backpack](https://onebag.travel/carryon/v15adbh2zw/alpaka-gear-traverse-backpack/)

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

![Front facing view of the Alpaka Gear Traverse Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990329/carryons/alpaka-gear-traverse-backpack-v15adbh2zw.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>1.5 kg</td></tr><tr><td>Dimensions</td><td>47×28×18 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Key differences between the Patagonia Black Hole® MLC® 45L and Alpaka Gear Traverse Backpack

-   **Laptop sleeve:** 15in on the Patagonia Black Hole® MLC® 45L; 16in on the Alpaka Gear Traverse Backpack.
-   **Built-in organizer:** No on the Patagonia Black Hole® MLC® 45L; Yes on the Alpaka Gear Traverse Backpack.
-   **Water bottle pockets:** 2, side on the Patagonia Black Hole® MLC® 45L; 1, side on the Alpaka Gear Traverse Backpack.

Both have: passport pocket, luggage passthrough, backpack straps, 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. 49 accept both. 0 accept only the Patagonia Black Hole® MLC® 45L, and 127 accept only the Alpaka Gear Traverse Backpack.

### Only the Alpaka Gear Traverse Backpack fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Macau, Air Malta, Air Mauritius, Air Niugini, 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, Belavia, Biman Bangladesh, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Eastern, CommutAir, Copa Airlines, Czech Airlines, Delta Airlines, Dragonair, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Flair Air, flybe, Garuda Indonesia, Gol Linhas Aereas, Great Lakes Airlines, Hawaiian Airlines, Hong Kong Airlines, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, 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, Nordwind Airlines, Norwegian, Oman Air, Pakistan International, Peach, Porter Airlines, Qantas Airways, Qatar Airways, Regional Express, Republic Airways, Royal Brunei Airlines, Royal Jordanian, 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, Virgin Australia, Volotea, WestJet, Xiamen.

## Patagonia Black Hole® MLC® 45L vs. Alpaka Gear Traverse Backpack: which should you pack?

The **Patagonia Black Hole® MLC® 45L** carries 15L more than the **Alpaka Gear Traverse Backpack** (45L vs. 30L), while the **Alpaka Gear Traverse Backpack** is the lighter pack at 1.5kg (vs. 1.7kg). For carry-on flexibility, the **Alpaka Gear Traverse Backpack** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Black Hole® MLC® 45L; if you want to travel lighter, the Alpaka Gear Traverse Backpack is the better call.