---
url: "https://onebag.travel/compare/brsq4qv334/stm-trilogy/ho0vrgmzo0/briggs-and-riley-large-fold-over-backpack/"
title: "STM Trilogy vs Briggs and Riley Large Fold-Over Backpack"
description: "STM Trilogy vs Briggs and Riley Large Fold-Over Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/brsq4qv334/stm-trilogy/ho0vrgmzo0/briggs-and-riley-large-fold-over-backpack/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  STM Trilogy vs. Briggs and Riley Large Fold-Over Backpack

# STM Trilogy vs. Briggs and Riley Large Fold-Over Backpack

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

## [STM Trilogy](https://onebag.travel/carryon/brsq4qv334/stm-trilogy/)

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

![Front facing view of the STM Trilogy](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1634095801/carryons/STM_Trilogy_lukffj.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24 L</td></tr><tr><td>Weight</td><td>0.64 kg</td></tr><tr><td>Dimensions</td><td>46×30×16 cm</td></tr><tr><td>Airline fit</td><td>94%</td></tr><tr><td>Price</td><td>$80</td></tr></tbody></table>

## Feature by feature

| STM Trilogy | Feature | Briggs and Riley Large Fold-Over Backpack |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 0 |
| N | Passport | N |
| N | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | N |
| Inside |
| 15in | Laptop | 17in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>100% polyester</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 STM Trilogy and Briggs and Riley Large Fold-Over Backpack

-   **Opening:** Top zip on the STM Trilogy; Other on the Briggs and Riley Large Fold-Over Backpack.
-   **Luggage passthrough:** No on the STM Trilogy; Yes on the Briggs and Riley Large Fold-Over Backpack.
-   **Laptop sleeve:** 15in on the STM Trilogy; 17in on the Briggs and Riley Large Fold-Over Backpack.
-   **Water bottle pockets:** 2 on the STM Trilogy; 1 on the Briggs and Riley Large Fold-Over Backpack.

Both have: backpack straps, 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. 174 accept both. 4 accept only the STM Trilogy, and 0 accept only the Briggs and Riley Large Fold-Over Backpack.

### Only the STM Trilogy fits

Air Niugini, American Eagle, easyJet, Ravn Alaska.

## STM Trilogy vs. Briggs and Riley Large Fold-Over Backpack: which should you pack?

The **Briggs and Riley Large Fold-Over Backpack** carries 5.699999999999999L more than the **STM Trilogy** (24L vs. 29.7L), while the **STM Trilogy** is the lighter pack at 0.64kg (vs. 1.5kg). For carry-on flexibility, the **STM Trilogy** fits 94% 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 STM Trilogy is the better call.