[Expandable Capacity & Suitable for 17.3 inch Laptop]: This laptop backpack has a laptop compartment with good thick cushion, which can protect your laptop well and suit for 17.3 inch laptops as well. This travel backpack has lots of space and pockets for what you need it for, and the capacity is 35L. A good companion for 3-5 days travel. | [As Personal Item Airline Approved]: Exclusive designed for airplane traveling, this carry on backpack can be opened 90-180 degree easily and quickly at the airport security. Designed to fit the maximun size allowed on a flight, it is available to keep under the seat in flight as personal item, for airlines such as Spirit, Easy Jet, Jet Blue. | [Multifunctional Opened Port for Charging & Listening]: The versatile port of the travel backpack side can provide convenient access to charge your phone or you can use it as a headphone port to listen to your premium music . (Tips: Only an opened port, charging cable and power bank are not included) | [Waterproof Material & Anti-theft Design]: This travel backpack for women is made of durable waterproof polyester, good in air permeability and heat dissipation. Backpack back zipper pocket protects your precious items, such as wallet, passport, and ID card from potential theft when traveling or lining up. (Clean Tip: Scrub with a cloth if necessary) | [Durable & Multipurpose]: All the zippers of this carry-on backpack are durable, smooth,and sturdy explosion-proof. The shoulder straps can be hidden, so you can carry it like a briefcase by using the side handle. There is also a luggage strap to help you fix it on the suitcase.