The laptop backpack is USB version revision be a more minimalist design , so the backpack no USB charge port and reduce some function ,such no two side pocket and the shoulder strap no ID card pocket,glasses hang bucks, so choose suitable yourself ones, the commute backpack can hold 15.6 inch laptop,The front pocket can be use fit casual shoes,sky ,9.7 ipad,Magazine and Other ,the main pocket can contain 4-5 clothing,and the the laptop pocket compartment can hold 15.6 inch laptop.the side have a pocket can store kettle,umbrella.laptop backpack adopt in durable zipper,have luggage strap for your trip be convenient,the travel backpack have a anti theft pocket on back,you don’t worry miss of your producs.