---
url: "https://onebag.travel/compare/3dlhnne6vf/patagonia-tres-backpack-25l/crqr3t387y/deuter-aviant-access-38-sl/"
title: "Patagonia Tres Backpack 25L vs Deuter Aviant Access 38 SL"
description: "Patagonia Tres Backpack 25L vs Deuter Aviant Access 38 SL: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/3dlhnne6vf/patagonia-tres-backpack-25l/crqr3t387y/deuter-aviant-access-38-sl/"
---
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3.  Patagonia Tres Backpack 25L vs. Deuter Aviant Access 38 SL

# Patagonia Tres Backpack 25L vs. Deuter Aviant Access 38 SL

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

## [Patagonia Tres Backpack 25L](https://onebag.travel/carryon/3dlhnne6vf/patagonia-tres-backpack-25l/)

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

![Front facing view of the Patagonia Tres Backpack 25L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1632804553/carryons/Patagonia_Tres_Backpack_25L_oncsjj.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>25 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>48×31×17 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$129</td></tr></tbody></table>

## Feature by feature

| Patagonia Tres Backpack 25L | Feature | Deuter Aviant Access 38 SL |
| --- | --- | --- |
| Storage |
| N | Compression | Y |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| N | Passport | N |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | hideable |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 13in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>630-denier 100% nylon, 200-denier 100% recycled polyester</td><td>600D PES, 420D PA</td></tr></tbody></table>

## [Deuter Aviant Access 38 SL](https://onebag.travel/carryon/crqr3t387y/deuter-aviant-access-38-sl/)

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

![Front facing view of the Deuter Aviant Access 38 SL](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1621580025/carryons/Deuter_Aviant_Access_38_SL_f7ksva.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>38 L</td></tr><tr><td>Weight</td><td>1.54 kg</td></tr><tr><td>Dimensions</td><td>55×35×23 cm</td></tr><tr><td>Airline fit</td><td>67%</td></tr><tr><td>Price</td><td>$120</td></tr></tbody></table>

## Key differences between the Patagonia Tres Backpack 25L and Deuter Aviant Access 38 SL

-   **Compression straps:** No on the Patagonia Tres Backpack 25L; Yes on the Deuter Aviant Access 38 SL.
-   **Laptop sleeve:** 15in on the Patagonia Tres Backpack 25L; 13in on the Deuter Aviant Access 38 SL.

Both have: luggage passthrough, backpack straps, sternum strap, 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. 127 accept both. 47 accept only the Patagonia Tres Backpack 25L, and 0 accept only the Deuter Aviant Access 38 SL.

### Only the Patagonia Tres Backpack 25L fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, Cayman Airways, China Eastern, Croatia Air, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

## Patagonia Tres Backpack 25L vs. Deuter Aviant Access 38 SL: which should you pack?

The **Deuter Aviant Access 38 SL** carries 13L more than the **Patagonia Tres Backpack 25L** (25L vs. 38L), while the **Patagonia Tres Backpack 25L** is the lighter pack at 0.9kg (vs. 1.54kg). For carry-on flexibility, the **Patagonia Tres Backpack 25L** fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Deuter Aviant Access 38 SL; if you want to travel lighter, the Patagonia Tres Backpack 25L is the better call.