Kensington Contour Balance Backpack Approx 18" H x 13.75" W x 3.75" D 4 Compartments The small bottom compartment is big enough to hold a water bottle Front compartment can be used for often accessed items like keys, phone, wallet The middle compartment has divided pockets to keep items neat and organized The large main compartment has a separate padded section for a tablet or notebook and is big enough to also carry textbooks or binders Slim Sleek Profile Padded Adjustable Straps One strap has a pocket for a misc small item Silver toned, long zipper pulls for easy access to compartments