---
url: "https://onebag.travel/compare/2p3vnffvw1/rei-co-op-commuter-pack/aiuhvv19pe/topo-designs-mountain-pack/"
title: "REI Co-op Commuter Pack vs Topo Designs Mountain Pack"
description: "REI Co-op Commuter Pack vs Topo Designs Mountain Pack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/2p3vnffvw1/rei-co-op-commuter-pack/aiuhvv19pe/topo-designs-mountain-pack/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  REI Co-op Commuter Pack vs. Topo Designs Mountain Pack

# REI Co-op Commuter Pack vs. Topo Designs Mountain Pack

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

## [REI Co-op Commuter Pack](https://onebag.travel/carryon/2p3vnffvw1/rei-co-op-commuter-pack/)

by [REI Co-op](https://onebag.travel/carryons/?brands=REI Co-op)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>22 L</td></tr><tr><td>Weight</td><td>0.7 kg</td></tr><tr><td>Dimensions</td><td>43×27×16 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$90</td></tr></tbody></table>

## Feature by feature

| REI Co-op Commuter Pack | Feature | Topo Designs Mountain Pack |
| --- | --- | --- |
| Storage |
| 2 | Compression | \>5 |
| None | Expanded Capacity | None |
| 1 | Opening | 2 |
| top | Passport | top |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 3 | Main Compartments | 3 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| N | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>100% recycled oxford nylon</td><td>1000D exterior, 210D coated pack cloth liner</td></tr></tbody></table>

## [Topo Designs Mountain Pack](https://onebag.travel/carryon/aiuhvv19pe/topo-designs-mountain-pack/)

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

![Front facing view of the Topo Designs Mountain Pack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601601607/carryons/topodesigns_wwcrzi.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>1 kg</td></tr><tr><td>Dimensions</td><td>48×29×18 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$180</td></tr></tbody></table>

## Key differences between the REI Co-op Commuter Pack and Topo Designs Mountain Pack

-   **Compression straps:** 2 on the REI Co-op Commuter Pack; >5 on the Topo Designs Mountain Pack.
-   **Opening:** Clamshell on the REI Co-op Commuter Pack; Rolltop on the Topo Designs Mountain Pack.
-   **Water resistant:** No on the REI Co-op Commuter Pack; Yes on the Topo Designs Mountain Pack.

Both have: passport pocket, backpack straps, hip belt, 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. 175 accept both. 6 accept only the REI Co-op Commuter Pack, and 0 accept only the Topo Designs Mountain Pack.

### Only the REI Co-op Commuter Pack fits

Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, Ravn Alaska.

## REI Co-op Commuter Pack vs. Topo Designs Mountain Pack: which should you pack?

The **Topo Designs Mountain Pack** carries 8L more than the **REI Co-op Commuter Pack** (22L vs. 30L), while the **REI Co-op Commuter Pack** is the lighter pack at 0.7kg (vs. 1kg). For carry-on flexibility, the **REI Co-op Commuter Pack** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Topo Designs Mountain Pack; if you want to travel lighter, the REI Co-op Commuter Pack is the better call.