I love this bag. It has many different storage areas, a lot of space, and it's comfortable to wear. The main area has two "pockets" at the back for a laptop and smaller devices or notebooks. For reference, my beastly 15.6 Asus aluminum laptop just fits in the large pocket. The 2nd largest area has so many compartments for storage and it very deep. The 3 small top pockets are great for keeping small items you need quick access to. There are several more pockets on the lower level and one large zipper pocket. In the front there is a small outer area for storing a small wallet or other items, along with an open pouch and two mesh side pockets for water bottles.