I have 3 of these and they are so useful for so many things. I'm keeping my black and red ones though... need to give up some wristlets to make room in my life! It is 9.75" x 5.5" with a 13.5" wrist strap (incl clasp). Has 6 card pockets inside like a wallet and a big inside zipper pocket. It holds a LOT. (I added a pic of my black one stuffed full of my "life essentials") It is "man-made materials", i.e. pleather, with a cool animal print cotton lining inside. Practically indestructible.