Come and see our amazing products. 16.24 x12.20inch ,Durable Nylon material, Water-repellent. Look stylish and attractive, not be too bulky but roomy for everything you need, a good choice for daily commute, business travel, college rucksack bookbag, laptop backpack purse, carry-on bag etc.USB Charging Port -- Built-in USB port design allows you conveniently to charge cell phone by connecting power bank without opening backpack on the go.(Power bank is not included). This backpack has a frame to hold it's large, rectangular opening providing easy access to the items at the bottom. Pls confirm with us about the packing info, stock color and exact production time before placing your order.