---
url: "https://onebag.travel/compare/5i9umxrgtv/cotopaxi-allpa-28/wbguakrqwy/ministry-of-supply-boston-one/"
title: "Cotopaxi Allpa 28 vs Ministry of Supply Boston One"
description: "Cotopaxi Allpa 28 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/5i9umxrgtv/cotopaxi-allpa-28/wbguakrqwy/ministry-of-supply-boston-one/"
---
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3.  Cotopaxi Allpa 28 vs. Ministry of Supply Boston One

# Cotopaxi Allpa 28 vs. Ministry of Supply Boston One

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

## [Cotopaxi Allpa 28](https://onebag.travel/carryon/5i9umxrgtv/cotopaxi-allpa-28/)

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

![Front facing view of the Cotopaxi Allpa 28](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1600983875/carryons/cotopaxi_ogqiah.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 kg</td></tr><tr><td>Dimensions</td><td>48×30×23 cm</td></tr><tr><td>Airline fit</td><td>73%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Feature by feature

| Cotopaxi Allpa 28 | Feature | Ministry of Supply Boston One |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| side | Passport | top |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | hideable |
| hideable | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, internal |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>100% recycled 840D TPU-coated 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 Cotopaxi Allpa 28 and Ministry of Supply Boston One

-   **Passport pocket:** Side on the Cotopaxi Allpa 28; Top on the Ministry of Supply Boston One.
-   **Hip belt:** Hideable on the Cotopaxi Allpa 28; No on the Ministry of Supply Boston One.
-   **Laptop sleeve:** 15in on the Cotopaxi Allpa 28; 16in on the Ministry of Supply Boston One.
-   **Water bottle pockets:** 1, side on the Cotopaxi Allpa 28; 1, internal on the Ministry of Supply Boston One.

Both have: 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. 138 accept both. 0 accept only the Cotopaxi Allpa 28, and 37 accept only the Ministry of Supply Boston One.

### Only the Ministry of Supply Boston One fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

## Cotopaxi Allpa 28 vs. Ministry of Supply Boston One: which should you pack?

The **Cotopaxi Allpa 28** carries the same capacity as the **Ministry of Supply Boston One** (28L vs. 28L), while the **Cotopaxi Allpa 28** is the lighter pack at 1kg (vs. 1.1kg). For carry-on flexibility, the **Ministry of Supply Boston One** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Allpa 28; if you want to travel lighter, the Cotopaxi Allpa 28 is the better call.