Sturdy Polytex computer backpack provides in its main compartment a padded sleeve that fits up to 15.6" notebook computers. Design includes zippered compartment for MP3 player with external headphone port, side water bottle pockets and lined zippered pocket for sunglasses. Organizer in front zippered pocket can be used for cell, media, pen, cables and key fob. Backpack rolls on corner inline wheels. Comfortable, push-button, retractable mono top handle reaches up 41" from floor. Adjustable backpack straps are hidden in a zippered compartment when not in use.