Made of 600D polyester, this rucksack has a main compartment with a padded laptop panel (12"h x 11"w x 1"d), interior pockets, front zippered flap, velcro closure on the front, an exterior pocket, padded air mesh shoulder straps, and a luggage trolley pass through on the back. The dimensions are 17"h x 10.5"w x 5"d.