EXPANDABLE CAPACITY: This large travel backpack expands 20% (from 27L to 32.5L) with a simple unzip, giving you the flexible packing space you need for short trips, long trips, and everything in between. CARRY-ON APPROVED: At 19.2 x 12.5 x 8.3 inches expanded, this bag meets international and US size requirements for carry-on luggage and easily fits in the overhead bins. COMFORTABLE CARRY: Ergonomic shoulder straps, breathable back panel, and a padded hip belt shift up to 80% of the load off your shoulders for a balanced, pain-free carry in this backpack for travel. EASY TO PACK: The front-loading, suitcase-style opening makes this convertible travel bag simple to organize. A built-in luggage handle pass-through sleeve lets you slide the bag onto your suitcase for easier airport travel. BUILT TO LAST: Made by travelers for travelers with durable, 630D CORDURA nylon and lockable YKK zippers. This black travel backpack for women and men is tough enough for years of backpack travel. "Travel with flexibility using the Tortuga Expandable Backpack, the carry-on travel backpack that adapts to any trip. Designed for travelers who want simplicity, durability, and comfort, this expandable travel bag grows from 27L to 32.5L with one quick unzip. Whether you're packing for a long weekend or a week-long adventure, you get the space you need without switching bags. As a carry-on travel backpack, it meets most US and international airline size limits so you can bring your travel bag onboard, avoid checked baggage fees, and keep your gear within reach. The front-loading, suitcase-style design opens wide for fast, easy packing, while smart organization—including a dedicated laptop sleeve, mesh compartments, dual water-bottle pockets, and quick-access exterior pockets—keeps everything organized. Comfort matters when you're on the move, and this men's and women's travel backpack is designed to carry heavy loads comfortably. Generous padding, breathable materials, and a supportive hip belt shift most of the weight to your hips, reducing strain on your shoulders. A luggage-handle pass-through adds convenience for airport travel. Built from rugged, weather-resistant CORDURA nylon and finished with lockable YKK zippers, this backpack suitcase for travel is engineered to withstand years of adventure. Wherever your travels take you, the Tortuga Expandable Backpack keeps your essentials protected and your mind at ease."