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 for pens and business cards, plus three flap-over hook 'n loop fastener pockets and large vertical pocket for glasses, accessories, or a cell phone. Back flap-over opening reveals large padded compartment for a laptop (15.5'L x 11'H x 3'W)