---
url: "https://onebag.travel/compare/ljup732ulf/atom-packs-atom/xkzrrigkky/peak-design-outdoor-backpack-45l/"
title: "Atom Packs "Atom+" vs Peak Design Outdoor Backpack 45L"
description: "Atom Packs "Atom+" vs Peak Design Outdoor Backpack 45L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/ljup732ulf/atom-packs-atom/xkzrrigkky/peak-design-outdoor-backpack-45l/"
---
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3.  Atom Packs "Atom+" vs. Peak Design Outdoor Backpack 45L

# Atom Packs "Atom+" vs. Peak Design Outdoor Backpack 45L

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

## [Atom Packs "Atom+"](https://onebag.travel/carryon/ljup732ulf/atom-packs-atom/)

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

![Front facing view of the Atom Packs "Atom+"](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620624793/carryons/Atom_Packs_Atom_louhmr.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>50 L</td></tr><tr><td>Weight</td><td>0 kg</td></tr><tr><td>Dimensions</td><td>0×0×0 cm</td></tr><tr><td>Airline fit</td><td>%</td></tr><tr><td>Price</td><td>$242</td></tr></tbody></table>

## Feature by feature

| Atom Packs "Atom+" | Feature | Peak Design Outdoor Backpack 45L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | 45L |
| 2 | Opening | 1 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| N | Laptop | 16in |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 4, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>210d Robic</td><td>Ultralight Terra Shell™ 210D ripstop</td></tr></tbody></table>

## [Peak Design Outdoor Backpack 45L](https://onebag.travel/carryon/xkzrrigkky/peak-design-outdoor-backpack-45l/)

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

![Front facing view of the Peak Design Outdoor Backpack 45L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990422/carryons/peak-design-outdoor-backpack-45l-xkzrrigkky.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>35 L</td></tr><tr><td>Weight</td><td>1.6 kg</td></tr><tr><td>Dimensions</td><td>56×31×17 cm</td></tr><tr><td>Airline fit</td><td>47%</td></tr><tr><td>Price</td><td>$330</td></tr></tbody></table>

## Key differences between the Atom Packs "Atom+" and Peak Design Outdoor Backpack 45L

-   **Opening:** Rolltop on the Atom Packs "Atom+"; Clamshell on the Peak Design Outdoor Backpack 45L.
-   **Laptop sleeve:** No on the Atom Packs "Atom+"; 16in on the Peak Design Outdoor Backpack 45L.
-   **Water bottle pockets:** 2 on the Atom Packs "Atom+"; 4, side on the Peak Design Outdoor Backpack 45L.

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

## Atom Packs "Atom+" vs. Peak Design Outdoor Backpack 45L: which should you pack?

The **Atom Packs "Atom+"** carries 15L more than the **Peak Design Outdoor Backpack 45L** (50L vs. 35L), and the two are closely matched on weight. If you prioritise packing volume, choose the Atom Packs "Atom+"; if you want to travel lighter, the Peak Design Outdoor Backpack 45L is the better call.