SIZE:55*36*15CM COLORS: COFFEE, GREEN, BLACK, KHAKI This bag has a large capacity. There is a main compartment, which has two small compartments. You can put the tablet in the main compartment; When traveling, you can put clothes, umbrellas, etc; There are two zipper pockets on the outside of the bag; Each side has a pocket, which is suitable for holding water bottle or drink. The material of the bag is very strong, and there are strong adjustable bags at the side and bottom. The zippers used on the bag are all high-quality retro metal zippers, which are durable, firm and rust free. COMFY&STURDY: Comfortable airflow back design with thick but soft multi-panel ventilated padding, gives you maximum back support. Breathable and adjustable shoulder straps relieve the stress of shoulder. Foam padded top handle for a long time carry on FUNCTIONAL&SAFE: A luggage strap allows backpack fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying. With a hidden anti theft pocket on the back protect your valuable items from thieves. Well made for international airplane travel and day trip as a travel gift for men DURABLE MATERIAL&SOLID: Made of canvas and Durable Polyester Fabric with metal zippers, a bagpack,college high school big student backpack for boys,girls,teens