Dimension:11.5"(L)×8"(W)×16"(H)Material: Superior quality and durable polyester which is light and heat resistant.Features:1.Our backpack includes one main pocket which has lots of storage space. It can hold many things, such as your laptop(15.4-inch),iPad,books, wallets, purse, etc.2.Two mesh pockets at side which can hold bottle, small umbrella.3.One front pocket with zipper which is convenient for keeping your keys, cards, pencils, change and some other small things.Design:1.The length of the shoulder straps is adjustable.2.With many pockets, it can make your items organized and easier to find.Application:1.Our backpack is perfectly used for school, work, travel, hiking, camping, biking,gym, etc.2.It is a nice choice daypack for students, adults, teens, boys and girls.