---
url: "https://onebag.travel/compare/gpfbufuba2/osprey-flapjack/zbkg4rek6h/oppose-this-invisible-carry-on/"
title: "Osprey Flapjack vs Oppose This Invisible Carry-On"
description: "Osprey Flapjack vs Oppose This Invisible Carry-On: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/gpfbufuba2/osprey-flapjack/zbkg4rek6h/oppose-this-invisible-carry-on/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Osprey Flapjack vs. Oppose This Invisible Carry-On

# Osprey Flapjack vs. Oppose This Invisible Carry-On

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

## [Osprey Flapjack](https://onebag.travel/carryon/gpfbufuba2/osprey-flapjack/)

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

![Front facing view of the Osprey Flapjack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601576342/carryons/c9e6c91c-b836-4c78-a9ed-c452b3ce9d5a_rsb3j2.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>0.9 kg</td></tr><tr><td>Dimensions</td><td>49×34×23 cm</td></tr><tr><td>Airline fit</td><td>72%</td></tr><tr><td>Price</td><td>$110</td></tr></tbody></table>

## Feature by feature

| Osprey Flapjack | Feature | Oppose This Invisible Carry-On |
| --- | --- | --- |
| Storage |
|  | Compression |  |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| side | Passport | top |
| N | Passthrough | N |
| Carry |
| Y | Backpack |  |
| removable | Hip Belt | N |
|  | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 15in |
| 3 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
|  | Water Bottle Holder |  |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>600D Polyspun</td><td>Shell: 800x600D lightweight waterproof nylon-polyester blend</td></tr></tbody></table>

## [Oppose This Invisible Carry-On](https://onebag.travel/carryon/zbkg4rek6h/oppose-this-invisible-carry-on/)

![Front facing view of the Oppose This Invisible Carry-On](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601599461/carryons/invisiblecrryon_xvl2xi.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>53×35×15 cm</td></tr><tr><td>Airline fit</td><td>88%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Key differences between the Osprey Flapjack and Oppose This Invisible Carry-On

-   **Passport pocket:** Side on the Osprey Flapjack; Top on the Oppose This Invisible Carry-On.
-   **Hip belt:** Removable on the Osprey Flapjack; No on the Oppose This Invisible Carry-On.
-   **Main compartments:** 3 on the Osprey Flapjack; 4 on the Oppose This Invisible Carry-On.

Both have: laptop sleeve, 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. 131 accept both. 5 accept only the Osprey Flapjack, and 35 accept only the Oppose This Invisible Carry-On.

### Only the Osprey Flapjack fits

Cayman Airways, Etihad Airways, Oman Air, Qatar Airways, Royal Jordanian.

### Only the Oppose This Invisible Carry-On fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, 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.

## Osprey Flapjack vs. Oppose This Invisible Carry-On: which should you pack?

The **Oppose This Invisible Carry-On** carries 3L more than the **Osprey Flapjack** (21L vs. 24L), while the **Osprey Flapjack** is the lighter pack at 0.9kg (vs. 1.5kg). For carry-on flexibility, the **Oppose This Invisible Carry-On** fits 88% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Oppose This Invisible Carry-On; if you want to travel lighter, the Osprey Flapjack is the better call.