4 main zippered compartments. Starting from the front of the bag, there is a small zippered area for keys, pens, phones, and other small items. The next zippered area is pictured. There is a few small pockets for pens/phone. Also a zippered pouch for sunglasses or other small items. Pretty good size compartment itself. Next is your typical backpack area for books and finally the padded 15inch Laptop compartment with brushed fleece lining. Very well padded and the brushed fleece will keep your fancy electronics looking fancy.
The straps and back panel have padding and mesh for comfort and breathability. Very comfortable even when carrying tons of books. Would definitely buy again.