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 Thule Landmark 40L Travel Pack in Obsidian is a well-designed carry-on backpack suited for adventure travelers. With its 40-liter capacity, it offers ample space to pack necessities, fitting the typical needs of a short to medium-length trip. Weighing approximately 2.2 pounds, this backpack is relatively lightweight, making it easier to carry during travels. The backpack is constructed with durability in mind, featuring practical materials that withstand the rigors of travel.

Comfort is a priority with contoured shoulder straps and a hip belt that can be tucked away when not needed, providing a customizable fit for extended carrying. The inclusion of a built-in sternum strap whistle adds an extra safety feature, which could be useful in various situations. The design includes multiple compartments for better organization, such as the SafeZone compartment for valuable items and a hidden pocket for cash and passports, enhancing the backpack's security features. The innovative LoopLocks are a thoughtful addition, providing peace of mind against theft.

Access to the backpack is user-friendly, with large zippered side pockets that secure items like water bottles efficiently. However, as a travel pack, its focus on security and organization might mean less room for bulky items when it’s filled with tech items, like a 15" MacBook and a 12.9" tablet. This backpack fits well for travelers who value security and organization but may not be the best choice if you’re seeking something ultra-spacious beyond its 40-liter capacity. The customer reviews are very positive, indicating satisfaction with its features and durability, which is a significant plus for prospective buyers.