Cotopaxi Allpa 35L vs. Tom Bihn Synapse 25

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

Cotopaxi Allpa 35L

Front facing view of the Cotopaxi Allpa 35L
Capacity35 L
Weight1.3 kg
Dimensions56×30×25 cm
Airline fit26%
Price$225

Feature by feature

Cotopaxi Allpa 35LFeatureTom Bihn Synapse 25
Storage
N Compression N
None Expanded Capacity None
1 Opening 0
front Passport front
Y Passthrough N
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
Material
100% recycled 840D TPU-coated nylon200 denier Halcyon/nylon ripstop fabric lining 400 denier nylon lower back

Tom Bihn Synapse 25

Front facing view of the Tom Bihn Synapse 25
Capacity25 L
Weight0.8 kg
Dimensions51×34×23 cm
Airline fit71%
Price$250

A casual spin on the quintessential traveler's dilemma, we're comparing two sturdy backpacks today: the Cotopaxi Allpa 35L by Cotopaxi and the Tom Bihn Synapse 25 by Tom Bihn. First on the rank is the Cotopaxi Allpa 35L, measuring a hefty 20 by 30 by 51 inches that offers a voluminous 35 liters of packing space. Weighing in at a notable 1.5 pounds, it's a seriously tough competitor made with 1680D ballistic nylon paneling. Not forgetting the tech junkies, it even hoards a specific compartment for a 15 inch laptop.

Now, let's meet the opponent: the Tom Bihn Synapse 25. Slimmer and lighter, it stretches 51 by 35 by 24 inches and champions a weight of 0.8 pounds. It's a sprightly option with 25 liters of loadout capacity. The material? Tough 200 denier Halcyon/nylon ripstop fabric lining coupled with 400 denier nylon for the lower back. The Synapse 25 also stows a compartment for a 15 inch laptop.

The Cotopaxi has vocal reviewers lauding it as an all-round bag with thoughtful design, airy for both urban and outdoorsy travelers, and praises its internal organization as being intuitive and possibly the best there is. They love the bag's external organization, its top-notch build, and material quality. Others have even suggested it as a sure-shot hit as a gift for graduating seniors ready to chart their own path around the world.

On the other hand, the Tom Bihn Synapse 25 also has its fair share of ardent fans. Sturdy praises highlight the bag's on-point organization, high-quality interior, and its use of durable materials. Not to mention, a warranty that seals the deal. It seems it's not a simple "either-or" scenario with these two tough competitors, each carrying its unique appeal for different kind of globetrotters.