Expandable & Extra Large Capacity：This 50L carry on backpack with expandable design offers you more capacity for packing. Unzipping to get 50L storage, then can easily accommodate clothing, shoes, and travel essentials, etc. It fits overhead and under seat while on state of standard carry on size, is an ideal choice for men, women, weekend traveler, or occasional vacationer. This versatile carry on backpack also meets airline carry-on requirements, for airlines such as Spirit, Jet Blue, etc. | Convertible & TSA Design: This carry-on backpack is multifunctional and can transform from a backpack to a suitcase style, providing you with a more flexible carrying experience. It comes equipped with a separate laptop compartment that can be fully opened to 180 degrees, making it easy and quick to pass through airport security checks and saving you valuable time. Additionally, it features a luggage belt on the back, designed for easier carry-on during international travel or on cruise ships. | Roomy Space & Shoe Compartment: Dimensions 19.5*14*7.5 inch(Expandable to 9.5inch), Light Weight 2.5lbs. One shoe compartment is crafted at the bottom of this carry on to keep the shoes separately and everything else clean. This shoe storage area is wide and deep enough to accommodate men's and women's shoes of size 5-12, which can also be used as toiletries bag and for other uses. | Multi- compartment: The carry on travel backpack has a separate laptop compartment, which could hold 17 Inch Laptop and prevent the laptop from moving. Main compartment with double zippers has enough storage room to store clothes or daily necessities for an overnight trip. Multiple pockets for different purposes in the storage bag keep your items organized and easier to find. The best gift choice for Thanksgiving Day, Christmas, New Year, Valentine's Day. | Sturdy & Lifetime：The large travel backpack is well made of Water-Repellent and Sturdy Nylon Fabric with metal zippers. Could be survived in different temperatures. Foam padded top handle is comfortable to carry on for a long time. With sturdy zippers and decent stitching, this backpack won't show any defects when on the go, ensuring you an unforgettable weekend getaway. A practical Christmas and New Year gift for your loved one. | Usb Charging Port: The travel backpack features a built-in USB charger outside and a charging cable inside, providing a convenient way to charge your phone while walking. It is important to note that the backpack does not include a power bank and does not power itself. The USB charging port is designed solely for charging purposes. With this added convenience, the backpack offers a practical solution for people who are frequently on-the-go and need to keep their electronic devices charged.