---
url: "https://onebag.travel/compare/pwip3uvh89/aer-pro-pack-20l/wbguakrqwy/ministry-of-supply-boston-one/"
title: "Aer Pro Pack 20L vs Ministry of Supply Boston One"
description: "Aer Pro Pack 20L vs Ministry of Supply Boston One: 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/wbguakrqwy/ministry-of-supply-boston-one/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Aer Pro Pack 20L vs. Ministry of Supply Boston One

# Aer Pro Pack 20L vs. Ministry of Supply Boston One

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 | Ministry of Supply Boston One |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | hideable |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 1, internal |
| 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>900D 100% polyester shell</td></tr></tbody></table>

## [Ministry of Supply Boston One](https://onebag.travel/carryon/wbguakrqwy/ministry-of-supply-boston-one/)

by [Ministry of Supply](https://onebag.travel/carryons/?brands=Ministry of Supply)

![Front facing view of the Ministry of Supply Boston One](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990385/carryons/ministry-of-supply-boston-one-wbguakrqwy.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>28 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>47×30×20 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Key differences between the Aer Pro Pack 20L and Ministry of Supply Boston One

-   **Backpack straps:** Yes on the Aer Pro Pack 20L; Hideable on the Ministry of Supply Boston One.
-   **Built-in organizer:** Yes on the Aer Pro Pack 20L; No on the Ministry of Supply Boston One.
-   **Water bottle pockets:** 2, side on the Aer Pro Pack 20L; 1, internal on the Ministry of Supply Boston One.

Both have: passport pocket, luggage passthrough, sternum strap, laptop sleeve, 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 Ministry of Supply Boston One.

### Only the Aer Pro Pack 20L fits

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

### Only the Ministry of Supply Boston One fits

Air Niugini.

## Aer Pro Pack 20L vs. Ministry of Supply Boston One: which should you pack?

The **Ministry of Supply Boston One** carries 8L more than the **Aer Pro Pack 20L** (20L vs. 28L), while the **Aer Pro Pack 20L** is the lighter pack at 1.1kg (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 Ministry of Supply Boston One; if you want to travel lighter, the Aer Pro Pack 20L is the better call.