Osprey Porter vs Tortuga Setout

Not Carry On Sized

The Osprey Porter 46 is two inches too tall to qualify as a carry on.

Most airlines’ max carry on size is 22” x 14” x 9”. But the Porter is 22” x 14” x 11”. That last number disqualifies the Porter 46 as a carry on backpack. 

Nothing is worse than thoughtfully packing in a carry on, only to have the airline force you to check your bag at the gate because your luggage isn't made to TSA specifications.


Measuring 22” x 14” x 9”, the Setout Travel Backpack actually does qualify as a carry on. You won't have to pay luggage fees or waste time waiting for your check bag after your flight.

Flimsy Hip Belt


Osprey — a company specializing in hiking backpacks where you’re carrying a heavy backpack for miles — includes a flimsy hip belt on the Porter.

A good hip belt transfers up to 80% of your bag’s weight from your tender shoulders down to your hips. With the Outbreaker, your stronger leg muscles can bear the weight of the bag.

With the Setout Backpack, your shoulders are guaranteed to have a good time, thanks to its high-quality, padded hip belt. Our hip belt does its job so efficiently that your body feels great carrying your packed-to-the-brim backpack even after a few miles of walking.

The Curse of Curves

When hunting for a good travel backpack, you want one without curves. Curves are dangerous in a travel backpack, like a twisting road is to someone prone to motion sickness.

Why? You want your backpack to use all available space, so you can pack more into it.

Before designing the Tortuga Setout, we experimented and tested with dozens of shapes and layouts.

Our goal was to find the best balance of functionality and aesthetics for a backpack. Through these tests, we discovered that rectangular luggage with straight sides does two things:

  1. Maximizes the amount you can carry on a plane
  2. Allows easier packing of your bag and visualizing of what it can hold

The Osprey Porter has very rounded curves; it’s shaped like a teardrop. That means you can’t fit small items into the corners.

Not so with Tortuga Setout. Its corners have a slight curve for aesthetic reasons. But its edges are straighter, more like a traditional suitcase. Because we want your packing to be easy and fast.

No Reachable Pockets

We've included two large pockets on the Setout's hip belt so you never need to take off your backpack to remove a small item. This is a massive convenience at TSA checkpoints.

The Osprey Porter’s hip belt doesn't have any pockets. You'd be inconvenienced taking off your backpack every time you want to remove your passport or grab some extra cash. 

Masters of Hiking, not Travel

Osprey mainly focuses on outdoor — particularly hiking and biking — customers. Travel is not their primary concern

At Tortuga, we focus on one thing: travel. Travel is our only consideration. It's our obsession and reason for being.

Travelers are the only customers for whom we design. That maniacal single driving focus lets us make our bags better and better at their only job: to be the ultimate travel backpack.

Read more about how we designed the Setout Backpack for your comfort and ease on the road in mind.