1. [The Perfect Small Travel Backpack] - The backpack measures 42 x 31 x 17, meeting the requirements for airline carry-on and maximum luggage allowances. In addition, our cabin backpack is widely accepted by major airlines and is a must-have for the airport. 2. Intelligent and Organized Storage: The unique 180° and suitcase-style drawstrings allow you to pack and organize as needed. 3. [Multi-functional and Convenient Design] - It is equipped with a charging port. If charging is not available during the trip, use our charging port to charge easily and connect effortlessly. If it's not convenient for you to hold it, you can hang the top strap anywhere, such as on the hook outside the airport bathroom door. 4. [One-piece Design, Convenient and High-quality] - This carry-on luggage bag is specially designed for travel. It is made of waterproof fabric, with wide, breathable and adjustable shoulder straps, and thickened and breathable sponge pads to relieve the pressure on your shoulders and back. Reinforced seams at the belt tension points, double metal zippers, a unique hidden zipper design and tidy straps ensure a neater look than you can imagine. 5. Multi-functional Airplane Backpack: The luggage trolley cover with hands-free function can connect the backpack to the suitcase and save energy. The 42x31x17 cabin backpack not only meets the personal luggage size requirements, but also makes a great gift for women on short vacations, a college school backpack, a handbag, and is suitable for women's outdoor sports and travel.