Description: Constructed with high quality nylon materials and durable mesh handles. Two front zipper compartments, great for holding accessories 3 carrying options: Briefcase, messenger, or backpack Convert messenger to backpack easily Hide-away backpack straps and belt clips when wanting to wear in a different style Headphone slot lets you keep your phone or MP3 Player in your backpack while listening to music Biggest compartment fits laptop up to 13in Strap: 57.75in (146.685cm) Approximate External Dimensions: 15 inches by 11 inches by 3 inches Approximate Internal Dimensions: 14 inches by 10 inches by 2 inches Package Included： 1 x New 3 In 1 Laptop Bag.