---
url: "https://onebag.travel/compare/1jv0r1cham/opposethis-invisible-carry-on-backpack/fjlyur632m/cotopaxi-allpa-travel-pack-42l-del-dia/"
title: "OPPOSETHIS Invisible CARRY-ON backpack vs Cotopaxi Allpa Travel Pack 42L Del Día"
description: "OPPOSETHIS Invisible CARRY-ON backpack vs Cotopaxi Allpa Travel Pack 42L Del Día: capacity, weight, dimensions and how many airlines accept each as a…"
source: "https://onebag.travel/compare/1jv0r1cham/opposethis-invisible-carry-on-backpack/fjlyur632m/cotopaxi-allpa-travel-pack-42l-del-dia/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  OPPOSETHIS Invisible CARRY-ON backpack vs. Cotopaxi Allpa Travel Pack 42L Del Día

# OPPOSETHIS Invisible CARRY-ON backpack vs. Cotopaxi Allpa Travel Pack 42L Del Día

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 | Cotopaxi Allpa Travel Pack 42L Del Día |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| Y | Passport | Y |
| N | Passthrough |  |
| Carry |
| Y | Backpack | hideable |
| N | Hip Belt | removable |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | Y |
| N | Water Bottle Holder | N |
| 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>100% repurposed nylon</td></tr></tbody></table>

## [Cotopaxi Allpa Travel Pack 42L Del Día](https://onebag.travel/carryon/fjlyur632m/cotopaxi-allpa-travel-pack-42l-del-dia/)

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

![Front facing view of the Cotopaxi Allpa Travel Pack 42L Del Día](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1621510166/carryons/Cotopaxi_Allpa_42L_Travel_Pack_fx7t3l.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>42 L</td></tr><tr><td>Weight</td><td>1.905 kg</td></tr><tr><td>Dimensions</td><td>55×34×22.5 cm</td></tr><tr><td>Airline fit</td><td>68%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Key differences between the OPPOSETHIS Invisible CARRY-ON backpack and Cotopaxi Allpa Travel Pack 42L Del Día

-   **Backpack straps:** Yes on the OPPOSETHIS Invisible CARRY-ON backpack; Hideable on the Cotopaxi Allpa Travel Pack 42L Del Día.
-   **Hip belt:** No on the OPPOSETHIS Invisible CARRY-ON backpack; Removable on the Cotopaxi Allpa Travel Pack 42L Del Día.
-   **Rain cover:** No on the OPPOSETHIS Invisible CARRY-ON backpack; Yes on the Cotopaxi Allpa Travel Pack 42L Del Día.

Both have: passport pocket, sternum strap, 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. 129 accept both. 45 accept only the OPPOSETHIS Invisible CARRY-ON backpack, and 0 accept only the Cotopaxi Allpa Travel Pack 42L Del Día.

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

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

## OPPOSETHIS Invisible CARRY-ON backpack vs. Cotopaxi Allpa Travel Pack 42L Del Día: which should you pack?

The **Cotopaxi Allpa Travel Pack 42L Del Día** carries 21L more than the **OPPOSETHIS Invisible CARRY-ON backpack** (21L vs. 42L), while the **OPPOSETHIS Invisible CARRY-ON backpack** is the lighter pack at 0.85kg (vs. 1.905kg). 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 Cotopaxi Allpa Travel Pack 42L Del Día; if you want to travel lighter, the OPPOSETHIS Invisible CARRY-ON backpack is the better call.