---
url: "https://onebag.travel/compare/1jv0r1cham/opposethis-invisible-carry-on-backpack/9jo001afhl/exped-metro-20/"
title: "OPPOSETHIS Invisible CARRY-ON backpack vs Exped Metro 20"
description: "OPPOSETHIS Invisible CARRY-ON backpack vs Exped Metro 20: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/1jv0r1cham/opposethis-invisible-carry-on-backpack/9jo001afhl/exped-metro-20/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  OPPOSETHIS Invisible CARRY-ON backpack vs. Exped Metro 20

# OPPOSETHIS Invisible CARRY-ON backpack vs. Exped Metro 20

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

## [OPPOSETHIS Invisible CARRY-ON backpack](https://onebag.travel/carryon/1jv0r1cham/opposethis-invisible-carry-on-backpack/)

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

![Front facing view of the OPPOSETHIS Invisible CARRY-ON backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1630648990/carryons/OPPOSETHIS_Invisible_Carry-On_Backpack_asa5kd.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>0.85 kg</td></tr><tr><td>Dimensions</td><td>47×32×15 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$255</td></tr></tbody></table>

## Feature by feature

| OPPOSETHIS Invisible CARRY-ON backpack | Feature | Exped Metro 20 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| Y | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>800x600D lightweight waterproof nylon-polyester blend</td><td>600 D ripstop polyester, PU coated, 1'200 mm water column</td></tr></tbody></table>

## [Exped Metro 20](https://onebag.travel/carryon/9jo001afhl/exped-metro-20/)

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

![Front facing view of the Exped Metro 20](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1623861489/carryons/Exped_Metro_20_bdlg25.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>0.72 kg</td></tr><tr><td>Dimensions</td><td>50×28×17 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$99</td></tr></tbody></table>

## Key differences between the OPPOSETHIS Invisible CARRY-ON backpack and Exped Metro 20

-   **Passport pocket:** Yes on the OPPOSETHIS Invisible CARRY-ON backpack; No on the Exped Metro 20.
-   **Built-in organizer:** Yes on the OPPOSETHIS Invisible CARRY-ON backpack; No on the Exped Metro 20.
-   **Water bottle pockets:** No on the OPPOSETHIS Invisible CARRY-ON backpack; 2 on the Exped Metro 20.

Both have: backpack straps, 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. 172 accept both. 2 accept only the OPPOSETHIS Invisible CARRY-ON backpack, and 2 accept only the Exped Metro 20.

### Only the OPPOSETHIS Invisible CARRY-ON backpack fits

Regional Express, Virgin Australia.

### Only the Exped Metro 20 fits

Air Niugini, Great Lakes Airlines.

## OPPOSETHIS Invisible CARRY-ON backpack vs. Exped Metro 20: which should you pack?

The **OPPOSETHIS Invisible CARRY-ON backpack** carries 1L more than the **Exped Metro 20** (21L vs. 20L), while the **Exped Metro 20** is the lighter pack at 0.72kg (vs. 0.85kg). For carry-on flexibility, the **OPPOSETHIS Invisible CARRY-ON backpack** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the OPPOSETHIS Invisible CARRY-ON backpack; if you want to travel lighter, the Exped Metro 20 is the better call.