---
url: "https://onebag.travel/compare/o2ztwwf7ru/patagonia-guidewater-backpack-29l/z6cmqsbvhy/kathmandu-dash-20l-lightweight-backpack/"
title: "Patagonia Guidewater Backpack 29L vs Kathmandu Dash 20L Lightweight Backpack"
description: "Patagonia Guidewater Backpack 29L vs Kathmandu Dash 20L Lightweight Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on…"
source: "https://onebag.travel/compare/o2ztwwf7ru/patagonia-guidewater-backpack-29l/z6cmqsbvhy/kathmandu-dash-20l-lightweight-backpack/"
---
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3.  Patagonia Guidewater Backpack 29L vs. Kathmandu Dash 20L Lightweight Backpack

# Patagonia Guidewater Backpack 29L vs. Kathmandu Dash 20L Lightweight Backpack

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

## [Patagonia Guidewater Backpack 29L](https://onebag.travel/carryon/o2ztwwf7ru/patagonia-guidewater-backpack-29l/)

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

![Front facing view of the Patagonia Guidewater Backpack 29L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1633585631/carryons/Patagonia_Guidewater_Backpack_29L_lrenhc.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>29 L</td></tr><tr><td>Weight</td><td>0.96 kg</td></tr><tr><td>Dimensions</td><td>54×35×23 cm</td></tr><tr><td>Airline fit</td><td>69%</td></tr></tbody></table>

## Feature by feature

| Patagonia Guidewater Backpack 29L | Feature | Kathmandu Dash 20L Lightweight Backpack |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 3 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside |
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | optional |
| N | Water Bottle Holder | 1 |
|  | Water Resistant | N |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>00% recycled nylon plain weave</td><td>210 Nylon HT Rip Stop Cordura™, 210 Polyester Oxford</td></tr></tbody></table>

## [Kathmandu Dash 20L Lightweight Backpack](https://onebag.travel/carryon/z6cmqsbvhy/kathmandu-dash-20l-lightweight-backpack/)

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

![Front facing view of the Kathmandu Dash 20L Lightweight Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1628141643/carryons/Kathmandu_Dash_20L_Lightweight_Backpack_ap3uzc.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>0.44 kg</td></tr><tr><td>Dimensions</td><td>46×25×22 cm</td></tr><tr><td>Airline fit</td><td>75%</td></tr><tr><td>Price</td><td>$100</td></tr></tbody></table>

## Key differences between the Patagonia Guidewater Backpack 29L and Kathmandu Dash 20L Lightweight Backpack

-   **Opening:** Top zip on the Patagonia Guidewater Backpack 29L; Top flap on the Kathmandu Dash 20L Lightweight Backpack.
-   **Rain cover:** No on the Patagonia Guidewater Backpack 29L; Optional on the Kathmandu Dash 20L Lightweight Backpack.
-   **Water bottle pockets:** No on the Patagonia Guidewater Backpack 29L; 1 on the Kathmandu Dash 20L Lightweight Backpack.

Both have: backpack straps, hip belt, sternum strap.

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

We checked both bags against the carry-on size limits of 189 airlines. 130 accept both. 0 accept only the Patagonia Guidewater Backpack 29L, and 11 accept only the Kathmandu Dash 20L Lightweight Backpack.

### Only the Kathmandu Dash 20L Lightweight Backpack fits

Cayman Airways, Etihad Airways, Great Lakes Airlines, Oman Air, Pakistan International, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Virgin Australia, WestJet.

## Patagonia Guidewater Backpack 29L vs. Kathmandu Dash 20L Lightweight Backpack: which should you pack?

The **Patagonia Guidewater Backpack 29L** carries 9L more than the **Kathmandu Dash 20L Lightweight Backpack** (29L vs. 20L), while the **Kathmandu Dash 20L Lightweight Backpack** is the lighter pack at 0.44kg (vs. 0.96kg). For carry-on flexibility, the **Kathmandu Dash 20L Lightweight Backpack** fits 75% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Guidewater Backpack 29L; if you want to travel lighter, the Kathmandu Dash 20L Lightweight Backpack is the better call.