---
url: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/ei8e6lj504/tom-bihn-synik-30/"
title: "Cotopaxi Allpa 35L versus Tom Bihn Synik 30 - One Bag Travel"
description: "Comparison of the Cotopaxi Allpa 35L and Tom Bihn Synik 30 carry-on travel backpacks."
source: "https://onebag.travel/compare/mcN0aY6G/cotopaxi-allpa-35l/ei8e6lj504/tom-bihn-synik-30/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Cotopaxi Allpa 35L vs. Tom Bihn Synik 30

# Cotopaxi Allpa 35L vs. Tom Bihn Synik 30

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

## [Cotopaxi Allpa 35L](https://onebag.travel/carryon/mcN0aY6G/cotopaxi-allpa-35l/)

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

![Front facing view of the Cotopaxi Allpa 35L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/an7zqlk8sro7sdinpykn)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>35 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>56×30×25 cm</td></tr><tr><td>Airline fit</td><td>26%</td></tr><tr><td>Price</td><td>$225</td></tr></tbody></table>

## Feature by feature

| Cotopaxi Allpa 35L | Feature | Tom Bihn Synik 30 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 15in |
| 3 | Main Compartments | 6 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, front |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>100% recycled 840D TPU-coated nylon</td><td>Ultralight 400d Halcyon/420d nylon ripstop</td></tr></tbody></table>

## [Tom Bihn Synik 30](https://onebag.travel/carryon/ei8e6lj504/tom-bihn-synik-30/)

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

![Front facing view of the Tom Bihn Synik 30](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/carryons/su48yo8t3umjr3tqx4uo)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>51×34×28 cm</td></tr><tr><td>Airline fit</td><td>14%</td></tr><tr><td>Price</td><td>$345</td></tr></tbody></table>

When it comes to versatility and functionality, the Cotopaxi Allpa 35L and Tom Bihn Synik 30 are both top picks in the range of carry on backpacks. This review provides an in-depth comparison of these two models to assist you in making an informed choice.

For those prioritizing space, the Cotopaxi Allpa 35L outperforms the Tom Bihn Synik 30 with its 35L capacity as opposed to the latter's 30L. Moreover, it's slightly lighter, weighing only 1.5 pounds compared to the 1.4 pounds of the Tom Bihn Synik 30. However, the compactness of the Synik 30 reflects its design optimally suiting carry-on restrictions with 89% airline compatibility, beating the Allpa 35L's 80%. Interestingly, although smaller, the Synik 30 can accommodate a larger laptop of up to 16 inches, while the Allpa 35L can only fit a 15-inch laptop.

-   Cotopaxi Allpa 35L: 20 inches tall, 30 inches wide, 51 inches deep, 35L capacity, 1.5 pounds, fits up to 15" laptop, 80% airline compatible, 1680D ballistic nylon paneling.
-   Tom Bihn Synik 30: 28 inches tall, 51 inches wide, 35 inches deep, 30L capacity, 1.4 pounds, fits up to 16" laptop, 89% airline compatible, material unlisted.

Review quotes commend the Allpa 35L for its intuitive internal organization, simplicity and comfort. It suits various types of travellers and matches the occasional budding world traveller. In contrast, the Tom Bihn Synik 30 is praised for its community support system, the comfort of its straps and the quality of its materials which have been consistent for over 50 years.

As for their unique selling points, the Allpa 35L shines with its rain cover, comfortable shoulder straps, additional mesh laundry bag, nylon shoe bag and mesh water bottle holder. The Synik 30 remains competitive with its ability to transition between travel, work, and outdoor activities. Equipped with numerous pockets and compartments, high-quality materials, padded straps and back panel for comfort, it is both modern and versatile. Its adaptable design can be altered to your liking with the addition or removal of accessories. These features define their respective goods, allowing them to cater to the needs of diverse travelers.