Carry and manage all of your textbooks, notebooks and more with this durable backpack. Multiple expanding sections open like luggage to give you extra storage space up to 7". Ergonomic straps distribute the weight of the backpack to make it easier to carry heavy items. Main compartment expands up to 4" for extra storage space when needed. The front pocket also expands up to 3" to give you more room for everything from your calculator to your lunch. Side access zipper allows easy side access so you can get items out of your backpack while it's hanging. Separate padded compartment securely holds and protects your laptop.