Buckle flap-over with two easy thumb release clasps opens to one main compartment with a divider for files and folders small zip-pocket and an extensive zip-down organizer plus three flap-over hook ‘n loop pockets and large vertical pocket. Back flap-over opening reveals large padded compartment for a laptop (16 x 12.5 x 3 ). Detachable side phone pocket top handle and adjustable/detachable shoulder strap