Lunar Lightweight 15.6" laptop backpack. The bag is constructed from a nylon box dobby with a water resistant coating including subtle reflective accent materials and reflective Elleven logo print for increased visibility at night. Features a front vertical zip pocket with a waterproof zipper. The large main compartment has a multi-layered storage panel on the front wall and the back wall has a padded tablet pocket. The zipped, fully padded laptop compartment in the back will hold up to a 15.6" laptop. The back includes the trolley band. Two exterior mesh pockets can easily hold larger water bottles or extra gear. 420D Ripstop Polyester.