---
url: "https://onebag.travel/compare/7iduxyqth8/ortlieb-commuter-daypack-high-visibility/cp4fciny/tom-bihn-synapse-19/"
title: "Ortlieb Commuter Daypack High Visibility vs Tom Bihn Synapse 19"
description: "Ortlieb Commuter Daypack High Visibility vs Tom Bihn Synapse 19: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/7iduxyqth8/ortlieb-commuter-daypack-high-visibility/cp4fciny/tom-bihn-synapse-19/"
---
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3.  Ortlieb Commuter Daypack High Visibility vs. Tom Bihn Synapse 19

# Ortlieb Commuter Daypack High Visibility vs. Tom Bihn Synapse 19

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

## [Ortlieb Commuter Daypack High Visibility](https://onebag.travel/carryon/7iduxyqth8/ortlieb-commuter-daypack-high-visibility/)

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

![Front facing view of the Ortlieb Commuter Daypack High Visibility](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1631153660/carryons/Ortlieb_Commuter_Daypack_High_Visibility_zn2e4e.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>21 L</td></tr><tr><td>Weight</td><td>0.86 kg</td></tr><tr><td>Dimensions</td><td>50×30×15.5 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Feature by feature

| Ortlieb Commuter Daypack High Visibility | Feature | Tom Bihn Synapse 19 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 2 | Opening | 0 |
| N | Passport | front |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| 15in | Laptop | N |
| 1 | Main Compartments | 6 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1, front |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>PS50CX</td><td>200 denier Halcyon/nylon ripstop fabric lining 400 denier nylon lower back</td></tr></tbody></table>

## [Tom Bihn Synapse 19](https://onebag.travel/carryon/cp4fciny/tom-bihn-synapse-19/)

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

![Front facing view of the Tom Bihn Synapse 19](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/uwtawghajoe4uwr4xhoy)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>19 L</td></tr><tr><td>Weight</td><td>0.7 kg</td></tr><tr><td>Dimensions</td><td>41×29×20 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$240</td></tr></tbody></table>

## Key differences between the Ortlieb Commuter Daypack High Visibility and Tom Bihn Synapse 19

-   **Opening:** Rolltop on the Ortlieb Commuter Daypack High Visibility; Other on the Tom Bihn Synapse 19.
-   **Passport pocket:** No on the Ortlieb Commuter Daypack High Visibility; Front on the Tom Bihn Synapse 19.
-   **Laptop sleeve:** 15in on the Ortlieb Commuter Daypack High Visibility; No on the Tom Bihn Synapse 19.
-   **Main compartments:** 1 on the Ortlieb Commuter Daypack High Visibility; 6 on the Tom Bihn Synapse 19.
-   **Water bottle pockets:** No on the Ortlieb Commuter Daypack High Visibility; 1, front on the Tom Bihn Synapse 19.

Both have: backpack straps, hip belt, 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. 173 accept both. 0 accept only the Ortlieb Commuter Daypack High Visibility, and 7 accept only the Tom Bihn Synapse 19.

### Only the Tom Bihn Synapse 19 fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska, Regional Express, Virgin Australia.

## Ortlieb Commuter Daypack High Visibility vs. Tom Bihn Synapse 19: which should you pack?

The **Ortlieb Commuter Daypack High Visibility** carries 2L more than the **Tom Bihn Synapse 19** (21L vs. 19L), while the **Tom Bihn Synapse 19** is the lighter pack at 0.7kg (vs. 0.86kg). For carry-on flexibility, the **Tom Bihn Synapse 19** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Ortlieb Commuter Daypack High Visibility; if you want to travel lighter, the Tom Bihn Synapse 19 is the better call.