Versatile & Expandable Airline-Approved Luggage Backpack: This roomy travel backpack effortlessly complies with carry-on regulations and can fit under seats. Its expandable design offers 40L storage for essentials like packing cubes, makeup, and gear. Perfect for men, women, weekend travelers, and vacationers. Efficient Multi-Compartment Organization: Organize your gear with ease. The front pocket accommodates small items, while the spacious interior features compression straps. Padded straps and adjustable sternum straps distribute weight evenly. External compression straps maximize space and protect zippers. Comfortable and Convenient to Carry: Lightweight and comfortable, thanks to adjustable shoulder straps and an air-mesh back panel. Padded handles on top and side make overhead bin retrieval a breeze. It is an excellent gift choice for both men and women. Anti-Theft & Wet/Dry Separation: Dual zipper locks secure your belongings, and a wet/dry separation pocket simplifies washing supplies on business trips. Durable & Waterproof: Crafted from high-density, splash-resistant polyester fabric, this backpack withstands rain and guarantees long-lasting daily use.