1.material;1680D polyester 2.size:30x16x51.5cm 3.usage:packing laptop,outing,business travel 4.certificated:ISO9001:2008 Description of product 1,durable material computer backpack2, laptop holder in the main compartment3,When you are preparing for your business travel or outing or working ,this backpack would be your good choice4,You don't worry the important laptop has not right place5, ...