This I-Stay laptop hardshell backpack with USB port and anti-theft padlock is suitable for carrying 15.6 inch laptops. The backpack is made with water resistant polyester and has a hard protective front shell and contrasting grey lining and blue trims. Featuring a padded airflow back, multiple mesh pockets, card pockets and key fob. The backpack has an anti-theft 3 digit TSA approved zipper lock, to allow secure travel to the USA. Complete with the unique dual non-slip I-stay straps, detachable with a hidden pocket when in briefcase mode.