The fullpack is the mack daddy of all the MadPax built for kids on the go. Store your books or guard your gear with a style that says you are one-of-a-kind. A stand out series for those who want to stick out from the crowd. High schoolers to mini rollers, all are welcome. This standard size backpack is recommended for kids ages 5 and up. SIZE: 18?h x 14?w x 8?d weight: 1.6 lb.