---
url: "https://onebag.travel/compare/t0jtlftd9v/haize-project-clamshell-25/zbkg4rek6h/oppose-this-invisible-carry-on/"
title: "haize project Clamshell 25 vs Oppose This Invisible Carry-On"
description: "haize project Clamshell 25 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/t0jtlftd9v/haize-project-clamshell-25/zbkg4rek6h/oppose-this-invisible-carry-on/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  haize project Clamshell 25 vs. Oppose This Invisible Carry-On

# haize project Clamshell 25 vs. Oppose This Invisible Carry-On

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

## [haize project Clamshell 25](https://onebag.travel/carryon/t0jtlftd9v/haize-project-clamshell-25/)

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

![Front facing view of the haize project Clamshell 25](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990372/carryons/haize-project-clamshell-25-t0jtlftd9v.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>25 L</td></tr><tr><td>Weight</td><td>1.4 kg</td></tr><tr><td>Dimensions</td><td>50×29×17 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$333</td></tr></tbody></table>

## Feature by feature

| haize project Clamshell 25 | Feature | Oppose This Invisible Carry-On |
| --- | --- | --- |
| Storage |
| 4 | Compression |  |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| top | Passport | top |
| N | Passthrough | N |
| Carry |
| Y | Backpack |  |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 15in |
| 4 | Main Compartments | 4 |
| N | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder |  |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>1680D RPET polyurethane</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 haize project Clamshell 25 and Oppose This Invisible Carry-On

-   **Opening:** Clamshell on the haize project Clamshell 25; Other on the Oppose This Invisible Carry-On.
-   **Built-in organizer:** No on the haize project Clamshell 25; Yes on the Oppose This Invisible Carry-On.

Both have: passport pocket, 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. 166 accept both. 7 accept only the haize project Clamshell 25, and 0 accept only the Oppose This Invisible Carry-On.

### Only the haize project Clamshell 25 fits

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

## haize project Clamshell 25 vs. Oppose This Invisible Carry-On: which should you pack?

The **haize project Clamshell 25** carries 1L more than the **Oppose This Invisible Carry-On** (25L vs. 24L), while the **haize project Clamshell 25** is the lighter pack at 1.4kg (vs. 1.5kg). For carry-on flexibility, the **haize project Clamshell 25** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the haize project Clamshell 25; if you want to travel lighter, the haize project Clamshell 25 is the better call.