Finally, a bag that works as hard as you do with Rain Defender® durable water repellant material to 1200D polyester durable base, this bag is made to last. Large main compartment to store books, files and most 17" computers in the padded laptop compartment. Dedicated pocket for your iPad/tablet. Dedicated front zippered compartment to store tools opens wide for easy access. 2 side zippered utility pockets as well as a zippered organizational compartment for additional storage. Contour fitted shoulder straps with back panel padded with air mesh.