10 Best 40 L Travel Backpacks 2026 in the United States

The Thule Aion Travel Backpack 40L in Nutria is designed to be a reliable companion for travelers. With a 40-liter capacity, it strikes a balance between spaciousness and manageability, making it suitable for extended trips without being overly bulky.

The backpack is made from bluesign approved, 100% recycled polyester fabrics, combined with a waxed canvas that features a PFC-free durable water-resistant coating, ensuring both eco-friendliness and resilience against the elements. Weighing in at 1.45 kilograms, it is reasonably lightweight for its size, though not the lightest option available.

Comfort-wise, the backpack can be enhanced with the addition of the Thule Aion Sling Bag, which doubles as a supportive hip belt, though this must be purchased separately. The inclusion of padded storage for a 15.6-inch laptop adds to its practicality for travelers.

The Thule Landmark Backpack 40L is a thoughtfully designed travel companion, particularly suited for those looking for a reliable carry-on option. With a capacity of 40 liters, it provides ample space for a short adventure trip while still adhering to carry-on size restrictions. Weighing in at about 1.58 kg (3.48 pounds), it's relatively lightweight, making it easier to carry for extended periods.

In terms of material, Thule is known for using durable fabrics, ensuring your backpack can withstand the rigors of travel. Comfort is enhanced by its ergonomic design, which likely includes padded shoulder straps and a supportive back panel, although these specific features aren't detailed in the brief. The backpack excels in the organization with dedicated compartments for a 15-inch MacBook and a 12.9-inch tablet, which is perfect for tech-savvy travelers. The CashStash compartment is a clever security feature, allowing you to protect valuable items like your passport and money from pickpockets. LoopLocks further enhance security by securing zipper pulls to deter theft, which is a valuable addition for peace of mind.

Access to the contents of the backpack is straightforward, thanks to its design, though the specifics of the main compartment's accessibility aren't outlined. The durability of the backpack is suggested by Thule's reputation, though it's always wise to handle it with care to extend its life. While it ranks relatively well in customer satisfaction with a 4.6-star rating, potential buyers should consider if the lack of detailed comfort features and the absence of a rain cover might affect their travel needs. This backpack is best suited for organized travelers who value security features and need a reliable, tech-friendly backpack for shorter trips.

The G4Free 40L Lightweight Packable Hiking Backpack is designed with travelers and hikers in mind, offering a balanced mix of features that cater to both comfort and functionality. With a 40-liter capacity, this backpack provides ample room for your essentials, making it suitable for short trips or day hikes. Its lightweight nature, at just 1 pound, ensures that it won't add unnecessary weight to your load, and its ability to fold into a compact size makes it an excellent space-saver for those trying to avoid extra baggage charges.

This backpack stands out with its waterproof wet pocket, ideal for keeping electronics and dry clothes separate from wet or soiled items, adding a layer of protection against unexpected weather or splashes. The multi-compartment design enhances organization, featuring a main compartment, several zipped pockets, and two side pockets, allowing users to efficiently sort and access their belongings.

Constructed from high-quality, water-resistant polyamide fabric and reinforced with Bar-Tacks at the seams, the backpack promises durability. The SBS zippers are an added bonus, noted for their abrasion resistance. Comfort is not neglected, with breathable, padded S-type shoulder straps and an adjustable chest strap designed to distribute weight evenly and reduce shoulder strain.

However, while the G4Free backpack offers great organization and durability, security features are somewhat limited as there is no mention of lockable zippers or anti-theft compartments, which might be a concern for travelers in unsafe areas. Additionally, while the packable nature is convenient, some users might find it less supportive for heavier loads due to the absence of a more structured frame.

This backpack is a versatile choice for individuals seeking a lightweight, durable, and water-resistant option for various activities, though those prioritizing high-security features may need to look elsewhere.