10 Best Carry On Backpacks 2026 in the United States

The Thule Landmark Backpack 40L is designed as a carry-on-sized travel backpack with a well-balanced 40-liter capacity, making it suitable for short trips or adventure travel. It weighs about 1.44 kilograms (roughly 3.2 pounds), which is relatively light for its size and capacity, helping reduce the load on your back during travel. The backpack offers good organization with six pockets and five compartments, including dedicated padded spaces for a 15" laptop and a 12.9" tablet, which is convenient for keeping electronics safe and accessible.

The MATEIN Mens Backpack is a strong choice for travelers looking for a versatile carry-on bag. Its expandable design offers generous packing space, meeting airline size limits while letting you fit extra items when needed. Weighing just 13.7 ounces, it’s very lightweight, easing the burden when moving through airports or on day trips. Comfort is well addressed with padded, adjustable shoulder straps, a ventilated back panel, and a sternum strap to help distribute weight more evenly, which is great for longer wear. The backpack converts neatly between a traditional carry-on style and a briefcase look by hiding the shoulder straps, adding flexibility for different travel situations. Organizationally, it includes a front pocket for small essentials like phones and earphones, a large main compartment with compression straps to keep items secure, and multiple grab handles for easy handling.

The Thule Aion Travel Backpack 40L is a solid choice for travelers needing a carry-on backpack that balances size and organization well. Its 40-liter capacity is roomy enough for a few days' worth of gear while still meeting most airline carry-on size rules, making it convenient for frequent flyers. At about 1.45 kg (3.2 lbs), it strikes a good balance—not too heavy but sturdy enough for travel. Comfort is enhanced by the option to pair with the Thule Aion Sling Bag as a supportive hip belt (sold separately), which can help distribute weight better on longer trips.