- Expandable Design : This large travel backpack features an expandable capacity of up to 40 liters. Its unique unzipping mechanism increases storage width by 2 inches, accommodating 3-5 days worth of travel gear. Ideal for weekend getaways and business trips, the TSA-friendly 180-degree zipper closure allows for quick security checks. - Durable and Lightweight : Constructed from lightweight, water-resistant polyester, this travel backpack protects your belongings during drizzly days. The anti-scratch material ensures lasting durability while the easy-to-use zippers provide hassle-free access. With dimensions of 20x13x7 inches and a weight of just 2.09 lbs, it meets personal carry-on standards for airlines like Southwest, Spirit, JetBlue, and Frontier. It fits easily in overhead compartments or under seats. - Convenient Carrying Options : Designed for versatility, this backpack features hideaway padded shoulder straps that can be concealed in a zippered back panel when not in use. Two padded handles allow for easy lifting from different angles, enabling you to carry it as a suitcase or a traditional backpack. A convenient luggage strap fits securely on luggage handles for effortless transport during international travel. - Organized Storage : The main compartment includes a separate mesh pocket and ample space for various travel essentials, with internal compression straps to secure items. The front compartment contains multiple pockets for quick access to notebooks, pens, and earphones. An anti-theft pocket on the back is perfect for safeguarding valuables. This travel backpack is spacious enough for vacations, weekend trips, and overnight adventures.