---
url: "https://onebag.travel/compare/pwip3uvh89/aer-pro-pack-20l/x572q06ooc/gregory-border-18/"
title: "Aer Pro Pack 20L vs Gregory Border 18 - One Bag Travel"
description: "Aer Pro Pack 20L vs Gregory Border 18: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/pwip3uvh89/aer-pro-pack-20l/x572q06ooc/gregory-border-18/"
---
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3.  Aer Pro Pack 20L vs. Gregory Border 18

# Aer Pro Pack 20L vs. Gregory Border 18

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

## [Aer Pro Pack 20L](https://onebag.travel/carryon/pwip3uvh89/aer-pro-pack-20l/)

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

![Front facing view of the Aer Pro Pack 20L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990321/carryons/aer-pro-pack-20l-pwip3uvh89.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>45×31×14 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$180</td></tr></tbody></table>

## Feature by feature

| Aer Pro Pack 20L | Feature | Gregory Border 18 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 15in |
| 4 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | N |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>840D CORDURA re/cor recycled nylon</td><td>210D High Density Nylon</td></tr></tbody></table>

## [Gregory Border 18](https://onebag.travel/carryon/x572q06ooc/gregory-border-18/)

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

![Front facing view of the Gregory Border 18](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990368/carryons/gregory-border-18-x572q06ooc.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>18 L</td></tr><tr><td>Weight</td><td>0.8 kg</td></tr><tr><td>Dimensions</td><td>47×29×16 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$120</td></tr></tbody></table>

## Key differences between the Aer Pro Pack 20L and Gregory Border 18

-   **Opening:** Clamshell on the Aer Pro Pack 20L; Other on the Gregory Border 18.
-   **Laptop sleeve:** 16in on the Aer Pro Pack 20L; 15in on the Gregory Border 18.
-   **Water bottle pockets:** 2, side on the Aer Pro Pack 20L; No on the Gregory Border 18.

Both have: passport pocket, luggage passthrough, backpack straps, sternum strap, 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. 174 accept both. 5 accept only the Aer Pro Pack 20L, and 1 accept only the Gregory Border 18.

### Only the Aer Pro Pack 20L fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.

### Only the Gregory Border 18 fits

Air Niugini.

## Aer Pro Pack 20L vs. Gregory Border 18: which should you pack?

The **Aer Pro Pack 20L** carries 2L more than the **Gregory Border 18** (20L vs. 18L), while the **Gregory Border 18** is the lighter pack at 0.8kg (vs. 1.1kg). For carry-on flexibility, the **Aer Pro Pack 20L** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Pro Pack 20L; if you want to travel lighter, the Gregory Border 18 is the better call.