---
url: "https://onebag.travel/compare/7lxmyqjamk/cotopaxi-tarak-backpack-20l-del-dia/ejp4u65swx/boundary-supply-errant-x-pac/"
title: "Cotopaxi Tarak Backpack 20L Del Día vs Boundary Supply Errant X-Pac"
description: "Cotopaxi Tarak Backpack 20L Del Día vs Boundary Supply Errant X-Pac: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/7lxmyqjamk/cotopaxi-tarak-backpack-20l-del-dia/ejp4u65swx/boundary-supply-errant-x-pac/"
---
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3.  Cotopaxi Tarak Backpack 20L Del Día vs. Boundary Supply Errant X-Pac

# Cotopaxi Tarak Backpack 20L Del Día vs. Boundary Supply Errant X-Pac

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

## [Cotopaxi Tarak Backpack 20L Del Día](https://onebag.travel/carryon/7lxmyqjamk/cotopaxi-tarak-backpack-20l-del-dia/)

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

![Front facing view of the Cotopaxi Tarak Backpack 20L Del Día](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1621511508/carryons/Cotopaxi_Tarak_Backpack_20L_Del_Dia_av3d8p.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>562 kg</td></tr><tr><td>Dimensions</td><td>50.8×30.5×17.8 cm</td></tr><tr><td>Airline fit</td><td>89%</td></tr><tr><td>Price</td><td>$100</td></tr></tbody></table>

## Feature by feature

| Cotopaxi Tarak Backpack 20L Del Día | Feature | Boundary Supply Errant X-Pac |
| --- | --- | --- |
| Storage |
| Y | Compression | Y |
| None | Expanded Capacity | None |
| 3 | Opening | 3 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| N | Laptop | 17in |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>210D ripstop nylon</td><td>X-Pac</td></tr></tbody></table>

## [Boundary Supply Errant X-Pac](https://onebag.travel/carryon/ejp4u65swx/boundary-supply-errant-x-pac/)

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

![Front facing view of the Boundary Supply Errant X-Pac](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620709756/carryons/Boundary_Supply_X-Pac_vfjtoh.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>22 L</td></tr><tr><td>Weight</td><td>1.4 kg</td></tr><tr><td>Dimensions</td><td>48×29×14 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Key differences between the Cotopaxi Tarak Backpack 20L Del Día and Boundary Supply Errant X-Pac

-   **Hip belt:** Removable on the Cotopaxi Tarak Backpack 20L Del Día; No on the Boundary Supply Errant X-Pac.
-   **Laptop sleeve:** No on the Cotopaxi Tarak Backpack 20L Del Día; 17in on the Boundary Supply Errant X-Pac.
-   **Water bottle pockets:** No on the Cotopaxi Tarak Backpack 20L Del Día; 1 on the Boundary Supply Errant X-Pac.

Both have: compression straps, 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. 169 accept both. 0 accept only the Cotopaxi Tarak Backpack 20L Del Día, and 6 accept only the Boundary Supply Errant X-Pac.

### Only the Boundary Supply Errant X-Pac fits

Air Niugini, Belavia, Etihad Airways, Qatar Airways, Regional Express, Virgin Australia.

## Cotopaxi Tarak Backpack 20L Del Día vs. Boundary Supply Errant X-Pac: which should you pack?

The **Boundary Supply Errant X-Pac** carries 2L more than the **Cotopaxi Tarak Backpack 20L Del Día** (20L vs. 22L), while the **Boundary Supply Errant X-Pac** is the lighter pack at 1.4kg (vs. 562kg). For carry-on flexibility, the **Boundary Supply Errant X-Pac** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Boundary Supply Errant X-Pac; if you want to travel lighter, the Boundary Supply Errant X-Pac is the better call.