The backpack use top quality water resistant nylon material, wear resistant, no need to worry when meet small rainning day, and avoid scratch while travelling. Large capacity, 1*main compartment, 1*front zipper pocket, 1*laptop layper, 2*side pockets, 3*interior pockets. no problem to keep pens, books, laptop, documents etc. when on business trip. USB charge port design, convenient to do the mobile charging when mobile phone is out of power.