---
url: "https://onebag.travel/compare/5nit7l6pc9/boundary-supply-errant-daypack/wi3e6it2a5/cabin-zero-military-28l/"
title: "Boundary Supply Errant Daypack vs Cabin Zero Military 28L"
description: "Boundary Supply Errant Daypack vs Cabin Zero Military 28L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/5nit7l6pc9/boundary-supply-errant-daypack/wi3e6it2a5/cabin-zero-military-28l/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Boundary Supply Errant Daypack vs. Cabin Zero Military 28L

# Boundary Supply Errant Daypack vs. Cabin Zero Military 28L

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

## [Boundary Supply Errant Daypack](https://onebag.travel/carryon/5nit7l6pc9/boundary-supply-errant-daypack/)

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

![Front facing view of the Boundary Supply Errant Daypack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601602232/carryons/boundrysupplyerrant_jn6yol.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>48×26×14 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$269</td></tr></tbody></table>

## Feature by feature

| Boundary Supply Errant Daypack | Feature | Cabin Zero Military 28L |
| --- | --- | --- |
| Storage |
| 1 | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| back | Passport | side |
| Y | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 15in |
| 5 | Main Compartments | 2 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>500D Duramax Kodra</td><td>1000 denier nylon</td></tr></tbody></table>

## [Cabin Zero Military 28L](https://onebag.travel/carryon/wi3e6it2a5/cabin-zero-military-28l/)

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

![Front facing view of the Cabin Zero Military 28L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1600639680/carryons/cabinzeromilitary_frhmf6.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>28 L</td></tr><tr><td>Weight</td><td>0.8 kg</td></tr><tr><td>Dimensions</td><td>43×30×16 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$126</td></tr></tbody></table>

## Key differences between the Boundary Supply Errant Daypack and Cabin Zero Military 28L

-   **Compression straps:** 1 on the Boundary Supply Errant Daypack; 4 on the Cabin Zero Military 28L.
-   **Passport pocket:** Back on the Boundary Supply Errant Daypack; Side on the Cabin Zero Military 28L.
-   **Luggage passthrough:** Yes on the Boundary Supply Errant Daypack; No on the Cabin Zero Military 28L.
-   **Hip belt:** Removable on the Boundary Supply Errant Daypack; No on the Cabin Zero Military 28L.
-   **Main compartments:** 5 on the Boundary Supply Errant Daypack; 2 on the Cabin Zero Military 28L.

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

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

We checked both bags against the carry-on size limits of 189 airlines. 175 accept both. 1 accept only the Boundary Supply Errant Daypack, and 5 accept only the Cabin Zero Military 28L.

### Only the Boundary Supply Errant Daypack fits

Great Lakes Airlines.

### Only the Cabin Zero Military 28L fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.

## Boundary Supply Errant Daypack vs. Cabin Zero Military 28L: which should you pack?

The **Cabin Zero Military 28L** carries 6L more than the **Boundary Supply Errant Daypack** (22L vs. 28L), while the **Cabin Zero Military 28L** is the lighter pack at 0.8kg (vs. 1.4kg). For carry-on flexibility, the **Cabin Zero Military 28L** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cabin Zero Military 28L; if you want to travel lighter, the Cabin Zero Military 28L is the better call.