SENPAIC Canvas Laptop Backpack Vintage Men Computer Backpack for College Students(Brown) Soft Material: Durable16 oz garment washed canvas, 100% cotton inside Multi-purpose uses: This bag can used as duffle/handbag/suitcase/brief case when travelling. Two durable straps are in a hidden compartment to make this bag a backpack/rucksack/satchel. A detachable shoulder strap can easily turn the backpack into a messenger bag/crossbody bag/mail bag/shoulder bag. One bag offers at least three different ways of carrying Large Size: 17.72 inch, 11.42 inch long and 6.69 inch wide, can fits for 13-14inch laptop or MacBook. Big enough, space saving, easy to carry your necessary Economize your carrying effort: Thickened & widened breathable, adjustable, sponge straps, help reduce the load Useful and Spacious with many pockets: Besides main pocket, back zippered pocket, there are secret protective compartment, phone pocket, notebook pocket with Velcro and pen pocket inside the bag