Material:Backpack for men with usb charging port is made of sturdy and durable washing canvas and cotton lining. Laptop backpack perfect for school/travel/hiking/weekend/college.Please allow little color difference due to different camera or light environment. Large Size:backpack with dimension L33 * H44 * W12cm(13*17.3*4.7inch).Padded laptop pocket fits 15.6 inch laptop,and will protect your computer well.