✔ Body Dimension: 15.7 *13 *3 inches; Padded compartment fits up to 15.6" laptops, EXPANDABLE, spacious enough to carry laptop, IPAD, books, charger/mouse, conference papers, newspapers, and several files if needed; ✔ Design: Flap top with LOCK closure for security; Detachable shoulder strap adjusts for convenience; ✔ Interior: 2 main compartments, 2 zipper pockets, 1 front compartment with 4 pen slots & 2 slip pockets; Exterior: back zipper pockets for need-it-now essentials;