---
url: "https://onebag.travel/compare/c0au43xw52/boundary-supply-prima-system-modular-travel-backpack/ho0vrgmzo0/briggs-and-riley-large-fold-over-backpack/"
title: "Boundary Supply -- Prima System Modular Travel Backpack vs Briggs and Riley Large Fold-Over Backpack"
description: "Boundary Supply -- Prima System Modular Travel Backpack vs Briggs and Riley Large Fold-Over Backpack: capacity, weight, dimensions and how many airlines…"
source: "https://onebag.travel/compare/c0au43xw52/boundary-supply-prima-system-modular-travel-backpack/ho0vrgmzo0/briggs-and-riley-large-fold-over-backpack/"
---
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3.  Boundary Supply -- Prima System Modular Travel Backpack vs. Briggs and Riley Large Fold-Over Backpack

# Boundary Supply -- Prima System Modular Travel Backpack vs. Briggs and Riley Large Fold-Over Backpack

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

## [Boundary Supply -- Prima System Modular Travel Backpack](https://onebag.travel/carryon/c0au43xw52/boundary-supply-prima-system-modular-travel-backpack/)

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

![Front facing view of the Boundary Supply -- Prima System Modular Travel Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1619698435/carryons/Boundary_Supply_Prima_System_jsyefe.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>49×28×13 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$268</td></tr></tbody></table>

## Feature by feature

| Boundary Supply -- Prima System Modular Travel Backpack | Feature | Briggs and Riley Large Fold-Over Backpack |
| --- | --- | --- |
| Storage |
| Y | Compression | N |
| 30L | Expanded Capacity | None |
| 0 | Opening | 0 |
| Y | Passport | N |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | N |
| removable | Sternum Strap | N |
| Inside |
| 17in | Laptop | 17in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>Nywool, Nylon, Kodra Nylon</td><td>Coated and woven polyester</td></tr></tbody></table>

## [Briggs and Riley Large Fold-Over Backpack](https://onebag.travel/carryon/ho0vrgmzo0/briggs-and-riley-large-fold-over-backpack/)

by [Briggs & Riley](https://onebag.travel/carryons/?brands=Briggs & Riley)

![Front facing view of the Briggs and Riley Large Fold-Over Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620712619/carryons/B_R_Large_Fold-Over_Backpack_uo4b0p.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>29.7 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>47×33×16.5 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$279</td></tr></tbody></table>

## Key differences between the Boundary Supply -- Prima System Modular Travel Backpack and Briggs and Riley Large Fold-Over Backpack

-   **Compression straps:** Yes on the Boundary Supply -- Prima System Modular Travel Backpack; No on the Briggs and Riley Large Fold-Over Backpack.
-   **Passport pocket:** Yes on the Boundary Supply -- Prima System Modular Travel Backpack; No on the Briggs and Riley Large Fold-Over Backpack.
-   **Hip belt:** Removable on the Boundary Supply -- Prima System Modular Travel Backpack; No on the Briggs and Riley Large Fold-Over Backpack.
-   **Sternum strap:** Removable on the Boundary Supply -- Prima System Modular Travel Backpack; No on the Briggs and Riley Large Fold-Over Backpack.

Both have: luggage passthrough, backpack straps, laptop sleeve, built-in organizer, 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. 172 accept both. 2 accept only the Boundary Supply -- Prima System Modular Travel Backpack, and 2 accept only the Briggs and Riley Large Fold-Over Backpack.

### Only the Boundary Supply -- Prima System Modular Travel Backpack fits

Air Niugini, Great Lakes Airlines.

### Only the Briggs and Riley Large Fold-Over Backpack fits

Regional Express, Virgin Australia.

## Boundary Supply -- Prima System Modular Travel Backpack vs. Briggs and Riley Large Fold-Over Backpack: which should you pack?

The **Briggs and Riley Large Fold-Over Backpack** carries 7.699999999999999L more than the **Boundary Supply -- Prima System Modular Travel Backpack** (22L vs. 29.7L), while the **Boundary Supply -- Prima System Modular Travel Backpack** is the lighter pack at 1.4kg (vs. 1.5kg). For carry-on flexibility, the **Boundary Supply -- Prima System Modular Travel Backpack** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Briggs and Riley Large Fold-Over Backpack; if you want to travel lighter, the Boundary Supply -- Prima System Modular Travel Backpack is the better call.