Extra Large Travel Backpack For Men Women, 40L Expandable Backpacks Airline Approved, Business Traveling Backpack For Flight, Suitcase Luggage BackpackFeatures:Lots of pockets: The main compartment of the backpack has separate mesh pockets, spacious enough to store different , and internal compression elastic straps to hold items well. Easy for you to find items or any small things. External pockets on both sides can hold water bottles and umbrellas.Expandable and large capacity: This large travel backpack features an expandable design that gives you a larger capacity of up to 40 L. The front compartment has various pockets for storing notebooks, pens, headphones and other small items that can be opened and closed 180 degrees for quick access. Enough space to accommodate a 17.3" laptop.Functional USB port design: With USB charging holes on the outside, this usb backpack provides a more convenient way to charge your phone while you're walking. Note that the USB charging hole provides a convenient charging channel, it will not power itself.Practical & Secure: This men's backpack is made of and nylon fabric, polyester and metal zippers; the travel backpack's metal zippers can be locked to your (any other electrical device) or valuables from theft; the foam-padded handle allows comfortable carrying for long periods of time. & Comfortable Material: backpack is equipped with material and matching sternum straps, the luggage backpack can effectively relieve the pressure on your shoulders and neck, and also reduce the pressure on the zipper. The thickened foam handles and shoulder straps provide you with more comfort when carrying for long periods of time.Product Description:Capacity: 40LPackage internal structure: zipper concealed pocket, cell phone pocket, ID pocket, laminated zipper pocket, computer insert pocketFlap opening: zipperMaterial: oxford clothWhether with lock: NoFeatures: breathable,, wear-, shock-, load-absorbingStyle: business commutingLining texture: polyesterNumber of shoulder straps: doubleCarrying parts: soft handleOuter pocket type: inner patch pocketLuggage shape: verticalWith or without trolley: NoCarrying system: curved shoulder strapsColor: BlackWith or without back cushioning: Yes degree: WaterproofComputer size: 17.3 inches 15.6 inchesApplicable scenario: business travel / travelApplicable gender: / both sexesBackpack size: 46 * 32 * 18CM (expanded size 28CM)Package includes:1 * backpack