---
url: "https://onebag.travel/compare/5x8vso1g7u/gregory-alpaca-40/vz8ujnmdi8/patagonia-black-hole-duffel-bag-55l/"
title: "Gregory Alpaca 40 vs Patagonia Black Hole® Duffel Bag 55L"
description: "Gregory Alpaca 40 vs Patagonia Black Hole® Duffel Bag 55L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/5x8vso1g7u/gregory-alpaca-40/vz8ujnmdi8/patagonia-black-hole-duffel-bag-55l/"
---
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3.  Gregory Alpaca 40 vs. Patagonia Black Hole® Duffel Bag 55L

# Gregory Alpaca 40 vs. Patagonia Black Hole® Duffel Bag 55L

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

## [Gregory Alpaca 40](https://onebag.travel/carryon/5x8vso1g7u/gregory-alpaca-40/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>57.9×33.8×28.7 cm</td></tr><tr><td>Airline fit</td><td>1%</td></tr><tr><td>Price</td><td>$140</td></tr></tbody></table>

## Feature by feature

| Gregory Alpaca 40 | Feature | Patagonia Black Hole® Duffel Bag 55L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 1 |
| side | Passport | side |
| N | Passthrough | Y |
| Carry |
| removable | Backpack | removable |
| N | Hip Belt | N |
| N | Sternum Strap | Y |
| Inside |
| N | Laptop | N |
| 3 | Main Compartments | 2 |
| 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>40% Recycled 900D Polyester Ripstop with TPU Weather resistant coating</td><td>100% recycled polyester ripstop with a matte, recycled TPU-film laminate</td></tr></tbody></table>

## [Patagonia Black Hole® Duffel Bag 55L](https://onebag.travel/carryon/vz8ujnmdi8/patagonia-black-hole-duffel-bag-55l/)

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

![Front facing view of the Patagonia Black Hole® Duffel Bag 55L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1633419557/carryons/Black_hole_duffel_bag_55_liters_dtqzpy.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>1.2 kg</td></tr><tr><td>Dimensions</td><td>58×34×24 cm</td></tr><tr><td>Airline fit</td><td>5%</td></tr><tr><td>Price</td><td>$170</td></tr></tbody></table>

## Key differences between the Gregory Alpaca 40 and Patagonia Black Hole® Duffel Bag 55L

-   **Opening:** Other on the Gregory Alpaca 40; Clamshell on the Patagonia Black Hole® Duffel Bag 55L.
-   **Luggage passthrough:** No on the Gregory Alpaca 40; Yes on the Patagonia Black Hole® Duffel Bag 55L.
-   **Sternum strap:** No on the Gregory Alpaca 40; Yes on the Patagonia Black Hole® Duffel Bag 55L.
-   **Main compartments:** 3 on the Gregory Alpaca 40; 2 on the Patagonia Black Hole® Duffel Bag 55L.

Both have: passport pocket, backpack straps, 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 Gregory Alpaca 40, and 8 accept only the Patagonia Black Hole® Duffel Bag 55L.

### Only the Patagonia Black Hole® Duffel Bag 55L fits

Adria Airways, Air New Zealand, Conviasa, Frontier Airlines, Island Air, PenAir, Southwest Airlines, Sun Country.

## Gregory Alpaca 40 vs. Patagonia Black Hole® Duffel Bag 55L: which should you pack?

The **Patagonia Black Hole® Duffel Bag 55L** carries 15L more than the **Gregory Alpaca 40** (40L vs. 55L), while the **Gregory Alpaca 40** is the lighter pack at 1.2kg (vs. 1.2kg). For carry-on flexibility, the **Patagonia Black Hole® Duffel Bag 55L** fits 5% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Black Hole® Duffel Bag 55L; if you want to travel lighter, the Gregory Alpaca 40 is the better call.