You can use the Mystery Ranch 3-Way Briefcase as a backpack, shoulder bag or a briefcase. It features zippered pockets at the front and the back to give you plenty of space for organisation, as well as a internal padded sleeve for your laptop. 500D CORDURA® fabric YKK® zippers Padded sleeve for laptops up to 15" Removable shoulder strap stores in interior pocket Back pocket is fulling lined with loop for attaching accessories Weight: 1.2kg Volume: 20L Dimensions: 28 x 42 x 27cm Black