I purchased this bag after I received a 40 lt "pratham" backpack (now discontinued for some reason) made by the same manufacturer "Naturecraft". Principal reason was to go for a nylon bag which is tougher than polyester. Just as in the case of "Pratham" I was happy to discover more features than one can get an idea from the description. The "Ansh" has one main compartment (this alone is listed) and there is a smaller compartment in which one can keep a full A4 paper rim (this may eat up ...