---
url: "https://onebag.travel/compare/ejp4u65swx/boundary-supply-errant-x-pac/pdshnb3ei0/asenlin-40l-travel-backpack/"
title: "Boundary Supply Errant X-Pac vs Asenlin 40L Travel Backpack"
description: "Boundary Supply Errant X-Pac vs Asenlin 40L Travel Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/ejp4u65swx/boundary-supply-errant-x-pac/pdshnb3ei0/asenlin-40l-travel-backpack/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Boundary Supply Errant X-Pac vs. Asenlin 40L Travel Backpack

# Boundary Supply Errant X-Pac vs. Asenlin 40L Travel Backpack

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

## [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>

## Feature by feature

| Boundary Supply Errant X-Pac | Feature | Asenlin 40L Travel Backpack |
| --- | --- | --- |
| Storage |
| Y | Compression | Y |
| None | Expanded Capacity | None |
| 3 | Opening | 1 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside |
| 17in | Laptop | 17in |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | 1 |
| Y | Water Resistant |  |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>X-Pac</td><td>Polyester Oxford Cloth</td></tr></tbody></table>

## [Asenlin 40L Travel Backpack](https://onebag.travel/carryon/pdshnb3ei0/asenlin-40l-travel-backpack/)

![Front facing view of the Asenlin 40L Travel Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/dakcigb9vbwsaathciup)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>47×32×25 cm</td></tr><tr><td>Airline fit</td><td>40%</td></tr></tbody></table>

## Key differences between the Boundary Supply Errant X-Pac and Asenlin 40L Travel Backpack

-   **Opening:** Top flap on the Boundary Supply Errant X-Pac; Clamshell on the Asenlin 40L Travel Backpack.
-   **Hip belt:** No on the Boundary Supply Errant X-Pac; Yes on the Asenlin 40L Travel Backpack.

Both have: compression straps, backpack straps, sternum strap, laptop sleeve, water bottle pockets.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 75 accept both. 100 accept only the Boundary Supply Errant X-Pac, and 0 accept only the Asenlin 40L Travel Backpack.

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

Aer Lingus, Air Asia, Air Baltic, Air Canada, Air China, Air Macau, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Asiana Airlines, ATA Airlines, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Belavia, Biman Bangladesh, Blue Air, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Eastern, CommutAir, Delta Airlines, Dragonair, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Flair Air, flybe, Garuda Indonesia, Hawaiian Airlines, Hong Kong Airlines, Icelandair, InselAir, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kulula, Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Oman Air, Pakistan International, Porter Airlines, Qantas Airways, Regional Express, Republic Airways, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, TUI, Turkish Airlines, Ukraine International, United Airlines, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Virgin Australia, Volotea, WestJet, Xiamen.

## Boundary Supply Errant X-Pac vs. Asenlin 40L Travel Backpack: which should you pack?

The **Asenlin 40L Travel Backpack** carries 18L more than the **Boundary Supply Errant X-Pac** (22L vs. 40L), while the **Asenlin 40L Travel Backpack** is the lighter pack at 1.2kg (vs. 1.4kg). 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 Asenlin 40L Travel Backpack; if you want to travel lighter, the Asenlin 40L Travel Backpack is the better call.