Bag dimension: 11 x 7.8 x 15.7 inch (LxWxH), Volume 22L. Durable Nylon material, Water-repellent. Look stylish and attractive, not be too bulky but roomy for everything (travel essentials or college supplies)you need, a good choice for daily commute, business travel, gifts, college rucksack bookbag, laptop backpack purse, carry-on bag, tech backpack, university big student backpack etc. USB Charging Port -- Built-in USB port design allows you conveniently to charge cell phone by connecting portable charger without opening backpack on the go or airplane travel, day trip, workout, office, work etc.(Power bank is not included) Wide Open & Anti-theft Back Pocket Design -- This backpack has a frame to hold it's large, rectangular opening providing easy access to the items at the bottom. No more digging. It can be wide-open 7.8”in width. A zip anti-theft pocket designed at back to store valuables for protecting your belongings from thieves. Large Capacity -- Roomy main zipper pocket with dedicated laptop compartment for screen sizes up to 15.6 inches, tablet pocket for iPad 10.5”, extra large space to hold a headphones or a game controller, A4 books,folders or short trip clothes.Two inner pockets, pen slots and exterior zip pocket provide storage for small items such as cards, keys, camera electronics accessories etc. Dual side pockets for water bottles or quick phone stash while going through TSA or using the charging port. Carry in Comfort -- Adjustable padded wide shoulder strap, release your pressure on back and shoulder. Top Handle Drop 3 inch allows you to carry it on your elbow (NOT SHOULDER) like a tote. A well-knit luggage belt is quite convenient for you to fix the backpack on the trolley of your luggage/suitcase, making your journey more convenient wherever you go.