Great product... It's a 15 litres bag, and not 23.184 litres as mentioned in the name. One needs to understand that it's a 15 litres bag and should have some idea about it's size. It's between small and medium in size. It has two compartments. One main with a laptop sleeve. It can accomodate a 13 inch thin laptop. And not more than that. Can carry a couple of small books. The second compartment in the front has two small mesh sleeves. There two key chain holders (velcro type). Good paddin...