---
url: "https://onebag.travel/compare/02bc32de-b553-463a-a455-177400d5423d/osprey-porter-46/cP4fciNY/tom-bihn-synapse-19/"
title: "Osprey Porter 46 versus Tom Bihn Synapse 19 - One Bag Travel"
description: "Comparison of the Osprey Porter 46 and Tom Bihn Synapse 19 carry-on travel backpacks."
source: "https://onebag.travel/compare/02bc32de-b553-463a-a455-177400d5423d/osprey-porter-46/cP4fciNY/tom-bihn-synapse-19/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Osprey Porter 46 vs. Tom Bihn Synapse 19

# Osprey Porter 46 vs. Tom Bihn Synapse 19

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

## [Osprey Porter 46](https://onebag.travel/carryon/02bc32de-b553-463a-a455-177400d5423d/osprey-porter-46/)

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

![Front facing view of the Osprey Porter 46](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/bus8myci54gl3byfegrn)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>46 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>55×36×23 cm</td></tr><tr><td>Airline fit</td><td>61%</td></tr><tr><td>Price</td><td>$185</td></tr></tbody></table>

## Feature by feature

| Osprey Porter 46 | Feature | Tom Bihn Synapse 19 |
| --- | --- | --- |
| Storage |
| 2 | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| top | Passport | front |
| Y | Passthrough | N |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| Inside |
| 16in | Laptop | N |
| 4 | 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>bluesign®-approved Recycled 500D Nylon Packcloth PFC Free DWR</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>

When it comes to choosing the right carry-on backpack, two options that are a cut above the rest include the Osprey Porter 46 and the Tom Bihn Synapse 19. While both bags excel in their respective categories, they present distinctive differences in design, size, weight, and loading capacity, all of which contribute to the user experience.

The Osprey Porter 46 boasts dimensions of 23 inches tall, 36 inches wide, and 56 inches deep, providing a weight allowance of 1.5 pounds and a substantial 46-liter capacity. This brings us to its best feature - the vast storage space that caters to travellers who lean towards overpacking. Additionally, the Porter is widely accepted in most airlines, making it an excellent companion for frequent flyers. Crafted entirely from Nylon, the bag’s durability shines through. However, its laptop compartment only fits a laptop that is a mere 1 inch wide.

In contrast, the Tom Bihn Synapse 19 measures 21 inches tall, 41 inches wide, and 29 inches deep, offering an impressively light weight of just 0.7 pounds and a 19-liter capacity. Despite being smaller, it holds about the same amount of goods relative to its size as the Porter. Unlike its counterpart, the Synapse 19 stands out in terms of airline compatibility – it gets along with virtually all airlines. Moreover, its construction consists of robust 200 denier Halcyon/nylon ripstop fabric lining and 400 denier nylon lower back, ensuring durability. Similar to the Porter, the Synapse 19 has a laptop compartment; however, it can conveniently fit a 15-inch device.

Here is a quick summary of their differences:

-   Osprey Porter 46 provides a larger loading capacity at 46 liters, compared to the Synapse 19’s 19 liters.
-   The Porter supports a 1-inch laptop, whereas the Synapse 19 fits a 15-inch laptop.
-   The Synapse 19 is lighter, weighing only 0.7 pounds compared to the Porter’s 1.5 pounds.
-   The Synapse 19 is compatible with 99% of airlines, whereas the Porter falls behind at a 47% compatibility rate.
-   The Porter is made of Nylon, while the Synapse 19 consists of sturdy 200 denier Halcyon/nylon ripstop fabric lining and 400 denier nylon lower back material.

Indeed, choosing between the Osprey Porter 46 and the Tom Bihn Synapse 19 comes down to user requirements and preferences. The Porter is perfect for those in search of extra storage in a single bag - packing one week worth of essentials is a breeze. On the other hand, the Synapse 19 is best suited to the minimalist traveller who requires lesser storage but places a premium on comfort and convenience during their journey. Regardless of the choice, both bags offer incredible versatility, solid construction, and remarkable usability, guaranteeing a hassle-free travel experience.