---
url: "https://onebag.travel/compare/asynuuvno8/the-brown-buffalo-conceal-pack-21l/vfr1o0y105/black-ember-citadel-18/"
title: "The Brown Buffalo Conceal Pack 21L vs Black Ember Citadel 18"
description: "The Brown Buffalo Conceal Pack 21L vs Black Ember Citadel 18: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/asynuuvno8/the-brown-buffalo-conceal-pack-21l/vfr1o0y105/black-ember-citadel-18/"
---
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3.  The Brown Buffalo Conceal Pack 21L vs. Black Ember Citadel 18

# The Brown Buffalo Conceal Pack 21L vs. Black Ember Citadel 18

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

## [The Brown Buffalo Conceal Pack 21L](https://onebag.travel/carryon/asynuuvno8/the-brown-buffalo-conceal-pack-21l/)

by [The Brown Buffalo](https://onebag.travel/carryons/?brands=The Brown Buffalo)

![Front facing view of the The Brown Buffalo Conceal Pack 21L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990440/carryons/the-brown-buffalo-conceal-pack-21l-asynuuvno8.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>21 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>50×30×15 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$325</td></tr></tbody></table>

## Feature by feature

| The Brown Buffalo Conceal Pack 21L | Feature | Black Ember Citadel 18 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 14in |
| 2 | Main Compartments | 3 |
| 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>Challenge® Sailcloth EPX400</td><td>420 VELOCITY CORDURA re/cor RN66</td></tr></tbody></table>

## [Black Ember Citadel 18](https://onebag.travel/carryon/vfr1o0y105/black-ember-citadel-18/)

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

![Front facing view of the Black Ember Citadel 18](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990474/carryons/black-ember-citadel-18-vfr1o0y105.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>1.3 kg</td></tr><tr><td>Dimensions</td><td>43×29×16 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$240</td></tr></tbody></table>

## Key differences between the The Brown Buffalo Conceal Pack 21L and Black Ember Citadel 18

-   **Passport pocket:** Front on the The Brown Buffalo Conceal Pack 21L; Top on the Black Ember Citadel 18.
-   **Laptop sleeve:** 15in on the The Brown Buffalo Conceal Pack 21L; 14in on the Black Ember Citadel 18.
-   **Main compartments:** 2 on the The Brown Buffalo Conceal Pack 21L; 3 on the Black Ember Citadel 18.

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. 173 accept both. 0 accept only the The Brown Buffalo Conceal Pack 21L, and 7 accept only the Black Ember Citadel 18.

### Only the Black Ember Citadel 18 fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska, Regional Express, Virgin Australia.

## The Brown Buffalo Conceal Pack 21L vs. Black Ember Citadel 18: which should you pack?

The **The Brown Buffalo Conceal Pack 21L** carries 3L more than the **Black Ember Citadel 18** (21L vs. 18L), while the **The Brown Buffalo Conceal Pack 21L** is the lighter pack at 1.3kg (vs. 1.3kg). For carry-on flexibility, the **Black Ember Citadel 18** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the The Brown Buffalo Conceal Pack 21L; if you want to travel lighter, the The Brown Buffalo Conceal Pack 21L is the better call.