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 mobil...