We Tested 19 Carry-On Backpacks—Here's What We Found (2024)

Finding the ultimate traveling pack for you means that you need to consider which features are the most important. These are the seven most pivotal design features so that all you need to do is check off what you uniquely need.

Size

First things first, find a carry-on bag that meets most carry-on limits.

We’ll start with the maximum sizes that you could possibly pick, based on airlines. I’ve compiled a few of the most common airlines below, along with their carry-on bag limitations in inches.

You may scratch your head and wonder just how much gear you can fit into 22 x 14 x 9, so let me break it down into liters for you. The majority of airlines’ carry-on bags range from 30 to 45 liters and, trust me, that’s plenty of space for the coveted one bag travel.

But here’s the rub: Just what size backpack works for you? This will mostly depend on your body type/size, and what kind of packer you are.

Please don’t underestimate the importance of picking a bag that fits you properly. This can make a world of difference in comfort and mobility. Very generally speaking, women can usually get by with a 30-liter pack, while men are generally comfortable with a 40-liter one.

Always consider your packing style, too. How long are you gone for, how much are you taking and do you want extra space for a souvenir or two?

Opening Style

Once you have a size, one of the more important items here is the opening style. Do you like top loaders, front loads, side zips, drawstring tops or a combination?

Think about what will be most comfortable, natural, and practical for you, and simply look for a bag to match. For carry-on backpacks, I recommend looking for a travel pack with a clamshell or panel loader design.

Weight

We already know that the more you cram into a backpack, the more it’s going to weigh you down while you dash through the airport. But consider this: The backpacks themselves can vary drastically when it comes to weight, and some may feel like you’ve already packed a brick or two, even when empty.

The variation in weight is mostly thanks to the different materials that are used in the bag construction, along with different harness constructions. In general, I’ve found that reliable brands that incorporate a sturdy and supportive harness system typically produce slightly heavier bags. Whereas the lighter bags lack this helpful feature.

To a lesser extent, materials also play a role here where, once again, the more durable, water-resistant and long-lasting constructions are, typically, slightly heavier. But this is not always the case. Higher price tags on backpacks can often indicate high-quality materials and construction that have been fine-tuned to not break your back.

So my best advice? Be sure to note what type of harness system the backpack uses, along with the overall weight of the bag. And just remember that, while quality material may weigh more, I guarantee it will pay out in the end.

Materials and Fabrics

Now the list of potential backpack materials is about as long as my arm, so let’s take a minute to break them down and label what’s good, how it’s good and what to steer clear of.

In the durability department, you’ll often find high-density ballistic nylon or Cordura to both be solid options. These are proven to hold up to the rough life of a traveler’s backpack and keep you on the move without a tear-jerking bag tear mid-trip. They are often presented with a weatherproofing treatment for better protection.

For ultimate durability and water resistance rolled into one, pay particular attention to sailcloth. Yes, this is the same material ship’s sails are made from, so you can certainly appreciate the battering they must withstand. They must also hold off the rain from constant storms and mists, yet be light enough to be manipulated into place. You can bet the backpacks made from this material are, therefore, just on this side of indestructible and weatherproof.

Zippers

Bah! Zippers are zippers, you don’t have to worry about those, right? Sorry to break it to you, folks, but you do need to pay attention to zippers. Just like any other component, zippers are a dime-a-dozen these days, and some are of higher quality than others.

My best advice is to try to find a backpack with the classic YKK brand zippers. This company has been in the game for a long while, and it knows how to make zippers last for the long haul. We’re talking about durable and water-resistant zippers that won’t break when you overstuff your backpack or let water seep in.

Backing Support

Not only can it be a little embarrassing but, more importantly, it’s also incredibly uncomfortable to travel with a sweaty back.

So what can you do? Keep an eye open for a mesh back panel that allows for some airflow back there. Or better yet, look for backpacks that utilize a harness and, ideally, boast mesh backing to lift the pack itself off your back.

Besides keeping you from sweating so much, backing support can also help to distribute the weight more evenly on your back. This keeps your backpack from inducing shoulder and back pains that you certainly don’t need when you’re already cramped up from sleeping on planes and buses all the time.

Harnesses and Shoulder Straps

Most backpacks may look very similar to one another but, trust me, they are almost all built for very specific and very different functions. The differences are usually in the shoulders and harness systems.

Let’s start with the most obvious, male vs. female packs. The two sexes traditionally have different body builds, and backpack manufacturers often accommodate this by producing packs that are specifically designed to fit male and female body types. So, first of all, make sure you’re looking at a pack that’s designed for you.

The next set of differences come with function. The whole kit-and-caboodle of shoulder strap suspension system, waist belt and bag framing comes with heavy hiking and outdoor use in mind. Meanwhile, more casual bags that lack the beef of a waist belt and overt frame are meant for casual wear. Think: city and business travel.

So once again, take a close look at the bag you’re considering, and see if your planned activities are in line with the manufacturer’s intent.