HIGH DENSITY MATERIALS: Made of high quality water resistant and anti-tear nylon fabric, which ensure a long lasting usage everyday. Reinforced sewing thread and edges can stand up to years of frequency use. External dimensions: 17.2"x11.6"x 5.4". Weight: 1.6LBS. USB CHARGING PORT: With external USB charging port and built-in charging cable inside, this Backpack offers you a more convenient way to charge your electronic device when walking. MULTI-FUNCTIONAL COMPARTMENTS: Large Capacity Compartments with roomy storage space makes your belongings well organized. One main spacious packing compartment with laptop sleeve for daily necessities, like binders, clothes, laptop, books, tablet and more accessories. Two front pockets keep your wallet, cards, keys and other leisure items easier to find. Two side pockets for water bottle and umbrella. VERSATILE BACKPACK: The nice looking backpack has many PU leather details, vintage and chic design is suitable for women. A perfect daypack for going to college, work, weekend holiday, overnight stay, biking, camping, gym, short trip, etc.