Backpack for laptop;2 main zippered compartments with full lining and thick foam inisde,one is for laptop,with PE boardon backside;the other is with big capacity for belongings;webbing binding;crossed elastic and closed with buckles at the bottom;the other side is with 2 open pockets;one zippered pocket with 2 webbing straps on the front;the other webbing holder on the backside to be put onto the trolley;adjustable backstrap;Sanwich mesh on the backside ;simple handle on top,special zipper pullers