When it comes to travel backpacks, there are several top-rated options available on the market. The best travel backpack for you will depend on your specific needs, preferences, and the type of travel you plan to undertake. However, here are some popular and highly regarded travel backpacks that you may consider:

1. Osprey Farpoint 40: This is a versatile and durable backpack that meets most airline carry-on size restrictions. It has a comfortable suspension system, multiple pockets for organization, and a laptop sleeve.
2. Tortuga Outbreaker: Designed specifically for travelers, the Tortuga Outbreaker offers excellent organization features, a clamshell opening for easy packing, and comfortable straps. It comes in different sizes to fit varying travel needs.
3. Patagonia Black Hole 32L: The Black Hole backpack is known for its rugged construction and water-resistant materials. It has a spacious main compartment, multiple pockets, and comfortable shoulder straps.
4. Nomatic Travel Pack: This backpack is popular among digital nomads and frequent travelers. It offers a sleek design, innovative organization features, a separate laptop compartment, and the ability to expand from 20L to 30L.
5. Peak Design Travel Backpack: Designed for photographers and tech-savvy travelers, this backpack has customizable dividers, quick side access, and a dedicated laptop sleeve. It also has a sleek design and durable construction.
6. REI Co-op Ruckpack 40: The Ruckpack 40 offers great value for money with its sturdy build and comfortable harness system. It has a U-shaped zipper for easy access, multiple pockets, and the ability to stow away the harness straps for transport.
7. Eagle Creek Global Companion: This backpack is known for its organization features and versatility. It has a separate compartment for a laptop and a zip-away suspension system. It also comes in different sizes to fit different torsos.

Remember to consider factors like size, durability, weight, comfort, organization, and specific features that meet your travel requirements when choosing the best travel backpack for you. It’s also a good idea to try them on in person, if possible, to ensure a proper fit and feel before making a purchase.