It's made out of a sturdy material polyester nylon yet remains fairly slim and can be sponged off if you spill on it. The dimension is 13.4*9.8*1.4 inches. Lots of places to put stuff and kept all your bits and pieces in one place Multi-pocket design: OUSIDE: a pocket on the front and a zipper pocket on the back; INSIDE: a note book pocket, a small pocket, a large pocket compatible with iPad and a large zipper pocket on the left, a mesh pocket, a pocket for pens or other things and two pockets for documents on the right A carry handle on the top, easy to carry and very convenient. Keeps all your important things organized, in one place and ready to go. Great for travelling, fits in a backpack nicely and will definitely get a lot of use.